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Title:
ON-CAMERA MONITOR AND MONITOR BATTERY POWER SUPPLY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/209274
Kind Code:
A1
Abstract:
The system of the present disclosure delivers electrical power from a monitor battery (preferably secured to a monitor) to a camera. The monitor battery is adapted to output a voltage. The monitor is adapted to operate on electrical power at a predetermined voltage. The monitor is in electrical communication with the monitor battery. The camera is adapted to operate on electrical power from a battery and at a predetermined voltage. The camera includes a battery compartment which provides electrical communication between the camera and a battery. A faux battery is configured for electrical communication with the camera through the battery compartment. The faux battery is in electrical communication with the monitor. The faux battery is also in electrical communication with the monitor battery through the monitor. The monitor battery is adapted to output the predetermined battery voltage necessary to operate the camera.

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Inventors:
BACKUS, Dale, Christopher (3500 Hundleby Drive, Apex, NC, 27539, US)
PHILLIPS, Weston, Lael (704 S. Bloodworth St, Raleigh, NC, 27601, US)
Application Number:
US2018/029214
Publication Date:
October 31, 2019
Filing Date:
April 24, 2018
Export Citation:
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Assignee:
SMALLHD LLC (118 MacKenan Drive, Suite 400Cary, NC, 27511, US)
International Classes:
G03B15/03
Foreign References:
US20020149695A12002-10-17
US20080007647A12008-01-10
US20170215255A12017-07-27
US5784105A1998-07-21
Attorney, Agent or Firm:
ZINGERMAN, Scott, R. (Gable Gotwals, 1100 Oneok Plaza100 West Fifh Stree, Tulsa OK, 74103-4217, US)
Download PDF:
Claims:
CLAIMS

What is claimed is:

1. A system for electrical power delivery to a monitor and a camera, comprising:

a monitor battery adapted to output a battery voltage;

the camera adapted to operate on electrical power from a battery at a

predetermined voltage;

the camera being in electrical communication with said monitor battery;

the monitor adapted to operate on electrical power from a battery at a

predetermined voltage;

said monitor being in electrical communication with said monitor battery;

said monitor battery adapted to output said predetermined battery voltage via said respective electrical communications to operate the monitor and the camera.

2. The system of claim 1 wherein said voltage output by said monitor battery is regulated.

3. The system of claim 2 further comprising:

said monitor including a processor;

said processor being in electrical communication with said monitor battery;

said processor being in electrical communication with said camera;

said processor adapted for regulating said voltage output by said monitor battery to said camera.

4. The system of claim 1 wherein said voltage output by the monitor battery to said camera is in the range of 12n-5n.

5. The system of claim 1 wherein said voltage output by said monitor battery to said camera is in the range of 9v-6v.

6. The system of claim 1 wherein said voltage output by said monitor battery to said camera is in the range of 8.5v-6.5v.

7. The system of claim 1 wherein said voltage output by said monitor battery to said camera is approximately 7.2v.

8. The system of claim 1 further including a faux battery in electrical communication with said camera and said monitor such that said monitor battery is in electrical communication with said camera through said monitor and said faux battery.

9. A system for electrical power delivery from a monitor to a camera, comprising:

a monitor battery adapted to output a voltage;

the monitor adapted to operate on electrical power from a battery at a

predetermined voltage;

the monitor being in electrical communication with said monitor battery;

the camera adapted to operate on electrical power from a battery;

the camera adapted to operate at a predetermined voltage;

the camera including a battery compartment to provide electrical communication between said camera and a battery;

a faux battery configured for electrical communication with said camera through said battery compartment;

said faux battery in electrical communication with said monitor;

said faux battery in electrical communication with said monitor battery through said monitor

said monitor battery adapted to output said predetermined battery voltage to

operate said camera.

10. The system of claim 9 wherein said battery compartment of said camera is configured to receive a battery and said faux battery is configured to mate said battery compartment of said camera.

11. The system of claim 10 wherein said monitor includes a battery mount and adapted for receiving said monitor battery.

12. The system of claim 11 wherein said monitor battery is an L-series type battery.

13. The system of claim 9 wherein the camera is a DSLR type camera.

14. The system of claim 9 wherein the monitor is mounted on the camera.

15. The system of claim 14 wherein the camera includes a cold shoe mount, the monitor is affixed to a bracket and said bracket is secured to said cold shoe mount.

16. The system of claim 15 wherein said bracket includes a mount adapted for receiving a camera accessory.

17. The system of claim 16 wherein said camera accessory is a microphone in electrical communication with the camera.

18. The system of claim 14 wherein the monitor includes at least one mount for receiving a camera accessory.

19. A method for providing power delivery to a monitor and a camera, comprising:

providing a monitor battery having a battery capacity;

the camera adapted to operate on electrical power from a battery with a battery capacity;

replacing the camera battery with a faux battery;

said faux battery being in electrical communication with said monitor battery; the battery capacity of said monitor battery being greater than said battery capacity of said camera battery.

20. The method of claim 19, wherein the camera is capable of being alternatively turned off and on, the method further including:

the monitor including a processor, said processor being adapted to place the

monitor into sleep mode or an active mode;

the processor receiving electronic signals from said camera indicating whether the camera is off or on;

the processor placing the monitor in sleep mode based on an electrical signal from said camera indicating that the camera is off;

the processor alternatively placing the monitor in active mode based on an electric signal from said camera indicating that the camera is on.

Description:
ON-CAMERA MONITOR AND MONITOR BATTERY POWER SUPPLY

SYSTEM

CROSS REFERENCE TO RELATED APPLICATION

This application claims the benefit of U.S. Provisional Application No. 62/661,583 filed April 23, 2018, herein incorporated by reference in its entirety for all purposes.

FIELD OF THE INVENTION

The present disclosure relates to the field of camera and monitor combinations and more particularly to power systems for camera and camera monitor combinations.

BACKGROUND OF THE INVENTION

Typical on-camera monitor systems consist of two major components, a camera and a monitor. Each of these are frequently designed to be battery operated. A known limitation of such systems is that often one of the batteries, such as and most often the camera battery, is sized to fit into a compact internal battery compartment (in the camera body). This means that the capacity of the battery is limited by battery composition design and configuration as it must be designed to fit/mate the battery compartment. Design trends are directed toward compact overall camera sizes which mandate a small battery compartment.

A small battery compartment and small mating battery means that the useful operating time of the camera (and the photographer/videographer) is limited by the capacity of the battery in providing power to the camera requiring frequent recharge or replacement. This either reduces productive camera use time or requires multiple batteries which each must be maintained, carried and charged.

An additional problem is that since the camera batteries are designed to fit a certain space in the battery compartment, these batteries are not interchangeable with batteries from other manufacturers, and in this way, individual, custom, and proprietary to the camera manufacturer. As a result, these specialty camera batteries are expensive and are nearly always different from the battery which is designed to power the monitor (monitor battery). The user must also necessarily carry, typically multiple, monitor batteries which are different from the camera battery. Since the batteries are different, different chargers are almost always required, as failure of either the camera battery or monitor battery will affect productivity . Significantly, the capacity of the battery must also be considered. A small battery physical form (to fit in a battery compartment) means a small capacity battery as compared to a larger battery (battery construction/chemistries being equal).

A need, therefore, exists for a system wherein a single battery (and, therefore, battery type) can be used to power at least both the camera and the monitor. A need also exists for this power supply battery to be of a higher capacity, at least as compared to the capacity of the existing camera battery. This supply battery must be capable of outputting the power requirements of the camera and the monitor.

SUMMARY OF THE INVENTION

In the invention of the present disclosure, a supply battery positioned on or in electrical communication with a monitor (hereinafter“monitor battery”) uses a faux camera battery adapter to supply power to a camera body. In one embodiment, power for both (monitor and camera) comes from a monitor battery mounted on back of the monitor. This battery may be of a common type in the photo/video arts (such as, without limitation, a Sony L-series type battery). Although termed in the art a“Sony L-series” (or“L-series” herein), this common battery style is available from multiple sources wherein a myriad of sizes with available Watts per hour (Whr) may be obtained.

The monitor battery (power supply source or supply battery) is mirrored (in power output - voltage/amperage) via a power-out connection found on the monitor. An adapter may be provided to use sourced supply out of the monitor connector into the faux battery used in the camera to provide electrical communication. The faux battery can be made to fit and for use in many different types of cameras. As a result, the apparatus of the present disclosure allows a user (such as a photographer/videographer) the flexibility to only keep/carry one battery type and one charger which fits that battery type. Thus, the monitor power supply system of the present disclosure allows for much greater Whr for the camera/monitor (plus optional accessories) system where the camera battery (capacity) is not limited to the designed space available on the camera (battery compartment). This allows for much longer user time.

The system of the present disclosure does not affect the functionality of the camera in any way. All power functions of the camera remain available. For example and without limitation, the camera may still power accessories such as a microphone or a flash/video light.

The monitor of the present disclosure optionally senses when the camera is active to turn on and off, which extends camera system run time. This may be accomplished by signaling on the HDMI connection from the camera to the monitor. The option to sense from HDMI to turn on / off monitor may be software controllable.

The voltage from the monitor battery out to the faux battery adapter installed in the camera may be the same voltage as the monitor battery. In one embodiment, the only thing in the path is a protection circuit (fuse) located inside the monitor. Minus the voltage drop in the wire (electrical communication), contacts, copper on PCB, this is the same voltage. As the battery decreases in charge, voltage will decrease. This decrease will also be seen at the camera.

The camera system of the present disclosure includes passing the battery voltage directly through to the faux battery, which would span a range of voltages (from about 8.5v to 6.5v in one embodiment), and also the concept of regulating a battery's voltage output so that it is within that same window for powering the camera. This second embodiment would usually only apply if the battery had a higher voltage than the camera could accept.

Accordingly, the camera system of the present disclosure includes a monitor battery adapted to output a range of voltages (those acceptable to the camera) regarding the power output (despite the existence or non-existence of voltage regulation). In another embodiment this may include a range of 12v - 5v. In an alternate embodiment, it would include a range of 9v - 6v. In a most preferred embodiment, this may be 7.2v.

The present disclosure includes a system for electrical power delivery from a monitor battery to a monitor and a camera. This system includes the camera, monitor and a monitor battery adapted to output a battery voltage.

The camera is adapted to operate on electrical power at a predetermined voltage. The camera is in electrical communication with the monitor battery. The monitor is also adapted to operate on electrical power at a predetermined voltage. The monitor also being in electrical communication with the monitor battery. The monitor battery is adapted to output the predetermined battery voltage via the respective electrical communications to operate the monitor and the camera. The voltage output by the battery may be regulated. The monitor may include a processor. The processor may be in electrical communication with the monitor battery and in electrical communication with the camera. The processor may be adapted for regulating the voltage output by the monitor battery to the camera.

A faux battery may be in electrical communication with the camera and the monitor such that the monitor battery is in electrical communication with the camera through the monitor and faux battery.

In a preferred embodiment the system of the present disclosure delivers electrical power from a monitor battery, preferably secured to a monitor, to a camera. The monitor battery is adapted to output a voltage. The monitor is adapted to operate on electrical power at a predetermined voltage. The monitor is in electrical communication with the monitor battery. The camera is adapted to operate on electrical power from a battery and at a predetermined voltage. The camera includes a battery compartment which provides electrical communication between the camera and a battery. A faux battery is configured for electrical communication with the camera through the battery compartment. The faux battery is in electrical communication with the monitor. The faux battery is also in electrical communication with the monitor battery through the monitor. The monitor battery is adapted to output the predetermined battery voltage necessary to operate the camera.

The battery compartment of the camera is typically configured to receive a battery which is proprietary to the camera manufacturer. This battery may include specific custom shape and size. The compartment is configured to receive this specific battery. In the system of the present disclosure, the faux battery is configured to mate the battery compartment of the camera.

The monitor preferably includes a battery mount and is adapted for receiving the monitor battery. In a preferred embodiment the battery is an L-series type battery. However, it should be understood that alternate types of batteries known in the art may be substituted. The camera of the system of the present disclosure is preferably a DSLR type camera. The monitor is preferably mounted on the camera. The camera may include a cold shoe mount such that the monitor is affixed to a bracket and the bracket is secured to the cold shoe mount. The bracket may include a mount adapted for receiving a camera accessory such as a microphone or a video light. The monitor may also include at least one mount for receiving a camera accessory. In a preferred arrangement a mount is positioned on each side of the circumference of the monitor.

The system of the present disclosure also contemplates a method for providing power delivery to a monitor and a camera. The method includes the steps of providing a monitor battery having a battery capacity; the camera adapted to operate on electrical power from a battery with a battery capacity; replacing the camera battery with a faux battery; the faux battery being in electrical communication with said monitor battery; the battery capacity of the monitor battery being greater than the battery capacity of the camera battery.

The camera may be capable of being alternatively turned off and on such that the method further includes the monitor including a processor the processor being adapted to place the monitor into sleep mode or an active mode; the processor receiving electronic signals from the camera indicating whether the camera is off or on; the processor placing the monitor in sleep mode based on an electrical signal from the camera indicating that the camera is off; the processor alternatively placing the monitor in active mode based on an electric signal from the camera indicating that the camera is on.

The foregoing has outlined in broad terms the more important features of the invention disclosed herein so that the detailed description that follows may be more clearly understood, and so that the contribution of the instant inventors to the art may be better appreciated. The instant invention is not limited in its application to the details of the construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. Rather the invention is capable of other embodiments and of being practiced and carried out in various other ways not specifically enumerated herein. Additionally, the disclosure that follows is intended to apply to all alternatives, modifications and equivalents as may be included within the spirit and the scope of the invention as defined by the appended claims. Further, it should be understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting, unless the specification specifically so limits the invention. BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic representation of the system of the present disclosure, including a camera; a monitor; a battery; and a faux battery.

FIG. 1A is the schematic representation of the system of Fig. 1 depicting an embodiment wherein the monitor battery is in direct electrical communication with the faux battery.

FIG. 2 is a back view of the system of the present disclosure including an exemplary DSLR camera; a monitor secured to the camera via a bracket and in electronic communication via a cable; a faux battery (not shown) secured in the battery compartment of the DSLR camera, and an electrical communication (cable) between the monitor and the faux battery.

FIG. 3 is a front view of the system of the present disclosure of Fig. 2 further depicting an exemplary battery mount on the back of the monitor as well as an exemplary video (preferably LED) light secured to one of at least three mount locations (one on each side) on the circumference of the monitor.

FIG. 4 is a side view of the system of the present disclosure of Fig. 2 and Fig. 3 further depicting an exemplary battery mounted in the battery mount on the monitor; the fact that the monitor may articulate (rotate) with respect to the mount/camera; the electronic communication (cable) between the monitor and the camera, and; the electrical communication (cable) between the monitor and the faux battery.

FIG. 5 is the back view of the system of the present disclosure of Fig. 2 further depicting an exemplary microphone secured to a cold shoe mount on the monitor bracket and in electronic/electrical communication with the camera (cable).

FIG. 6 is a block diagram depicting the system of the present disclosure, certain of the electronic components and electrical connections between the electronic components.

FIG. 7 is a tip plan view of the system of the present disclosure of Fig. 2 including an exemplary battery mounted in the battery mount.

FIG. 8 is a bottom plan view of the system of the present disclosure of Fig. 2 including a faux battery inserted into an internal battery compartment of the exemplary DSLR camera. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The embodiments herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiments that are illustrated in the accompanying drawings and detailed in the following description. Descriptions of well-known components and processes and manufacturing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The examples used herein are intended merely to facilitate an understanding of ways in which the invention herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the claimed invention.

Typical On-Camera monitor systems consist of two major parts; camera and monitor. Each of these are designed to be battery operated. Standard Digital Single Lens Reflex DSLR cameras known in the art have custom batteries designed to fit the manufacturer, type or other identification as well as the mechanical design of the camera product. This limits the ability to increase battery capacity post product release. Any increase in capacity will have to be done via a change in battery chemistry type (which does not happen often).

The system of the present disclosure allows the camera battery to be eliminated and power for the camera sourced from the monitor. This allows the user to only need one battery for the system. This battery can be of common type in the photography and videography arts. The single battery allows the user to use/keep a single battery type and charger. This battery can be selected by preference (weight and/or capacity desired).

With reference to Figs. 1-8, the present disclosure includes an on-camera monitor and monitor battery power system 10 for electrical power delivery from monitor battery 16 to monitor 14 and camera 12. System 10 includes a camera 12, a monitor 14, a monitor battery 16, Monitor battery 16 is adapted to output a battery voltage.

Camera 12 may include a body 20 and a lens 22. Camera 12 is adapted to operate on electrical power at a predetermined voltage. In a preferred embodiment, camera 12 is a Digital Single Lens Reflex (DSLR) camera, however it is understood that other cameras are contemplated. DSLR cameras are known in the art and commercially available.

Camera 12 is in electrical communication with monitor battery 16. Camera 12 may be in electrical communication directly (via faux battery 18) via cable 28 of FIG. 1A. Alternatively, camera 12 may be in electrical communication (via faux battery 18) with monitor battery 16 indirectly through monitor 14 and cable 26, as depicted in FIG. 1 and further described below.

Monitor 14 is also adapted to operate on electrical power at a predetermined voltage. Monitor 14 is in electrical communication with monitor battery 16 via battery mount 50 (FIG. 3) in a manner known to one of ordinary skill in the art.

Monitor battery 16 is adapted to output the predetermined battery voltage via the respective electrical cables 24, 26 (or alternatively 28, FIG. 1 A) to provide electrical power to operate monitor 14 and camera 16. The voltage output by monitor battery 16 may be regulated. Monitor 14 may include a recess 52 with ports for receiving plugs 54 and 56 terminating from respective cables 26 and 30. Plug 54 may be of a type known in the art to prove electrical communication from monitor 14 to cable 26. Plug 56 may also be of any type known in the art for data communication. However, a micro HDMI plug and mating port are particularly suitable for this purpose. Camera body 20 may include a data port for receiving a plug 58 at the opposite end of cable 30 from plug 56. Plug 58 may be of any known type such as a USB plug to be inserted in a USB port on body 20 of camera 12. This USB data port may be protected by a removable cover 55.

Monitor 14 may be any camera mountable monitor known in the art. As a non- limiting example, monitor 14 may include an LCD display 15. A suitable monitor for system 10 of the present disclosure is a FOCUS series monitor available from SmallHD, L.L.C., 118 MacKenan Drive, Suite 400, Cary, NC 27511.

The monitor may include a processor, described further below with regard to FIG. 6. The processor may be in electrical communication with monitor battery 16 and in electronic communication with camera 12. The processor may be adapted for regulating the voltage output by monitor battery 16 to camera 12.

Faux battery 18 may be in electrical communication with camera 12 and monitor 14 such that monitor battery 16 is in electrical communication with camera 12 through monitor 14 and faux battery 18. As stated, electrical communication may be accomplished by cable 26. Cable 26 may be permanently integrated into faux battery 18 or may include a removable electrical connection.

Camera 12 includes a battery compartment 19 (FIGS.4 and 8) which provides electrical communication between camera 12 and a battery. Faux battery 18 is configured for electrical communication with camera 12 through these existing connections in battery compartment 19. Faux battery 18 is in electrical communication with monitor 14. Faux battery 18 is also in electrical communication with monitor battery 16 through monitor 14. Monitor battery 16 is adapted to output the predetermined battery voltage necessary to properly power camera 12.

Battery compartment 19 of camera 12 is typically configured to receive a battery (not shown or a part of the present disclosure) which is proprietary to the particular manufacturer of camera 12. This battery may include specific custom shape and size. Battery compartment 19 is configured to receive this specific battery. In the system 10 of the present disclosure, faux battery 18 may be configured to mate battery compartment 19 of camera 12. A battery compartment door 21 (FIG. 8) may close and secure faux battery 18 in battery compartment 19 without restricting cable 26.

Monitor 14 may include a battery mount 50 (FIG. 3) adapted for receiving monitor battery 16. In a preferred embodiment monitor battery 16 is an L-series type battery. However, it should be understood that alternate types of batteries known in the art may be substituted, along with their mating battery mount. A suitable L-series battery may be obtained from Anton Bauer, www.antonbauer.com , model no. NP-F774 or NP-F976.

Monitor 14 may be mounted on camera 12. Camera 12 may include a cold shoe mount 42. Monitor 14 may be affixed to a bracket 40 and bracket 40 secured to cold shoe mount 42 in a manner known in the art such as by adapter 42. Bracket 40 may allow monitor 14 to articulate, or pivot about a pivot point (mount 45) as shown at 60 of FIG. 4 to allow for ease of viewing.

Bracket 40 may include a mount 44 adapted for receiving a camera accessory such as a microphone or a video light. FIG. 5 depicts the system 10 of the present disclosure wherein an accessory, microphone 62 is secured to mount 44 by a connector 64. Connector 64 may be a cold shoe type connector known in the art. Microphone 62 may be in electronic communication with camera 12 via cable 66 in a known manner. As such, all of the functionality of camera 12 is maintained in the system 10 of the present disclosure.

Monitor 14 may also include at least one mount 48 (FIG. 3) for receiving a camera accessory. FIG. 3 depicts an exemplary video light 51 (or another accessary). Video lights such as light 51 are known and available. Mount 48 may be a 1/4-20 type mount for receiving a 1/4-20 connector of light 51. In a preferred arrangement a mount, such as 48 is positioned on each side of the circumference of monitor 14. Monitor 14 is depicted secured to bracket 40 at another such mount on the side of monitor 14 via a connector 46. Such connectors are known in the art.

FIG. 6 is a block diagram depicting certain aspects of system 10 of the present disclosure. The voltage output from monitor battery 16 out to faux battery adapter 18 installed in camera 12 is the same voltage as monitor battery 16. In the embodiment depicted in FIG. 6, a protection circuit (fuse) 80 is provided in the electrical communication path between monitor battery 16 and camera 12. In this embodiment, it is the only component located in electrical communication path 26. Protection circuit (fuse) 80 is located inside monitor 14 in this embodiment. With the exception of the (minus) voltage drop in the wire (electrical communication 26), contacts, and copper on the printed circuit board (PCB), this is the same voltage. As the battery decreases in charge, voltage will decrease. This decrease will also be seen at camera 12.

As stated, the on-camera monitor and monitor battery power system 10 of the present disclosure, in a preferred embodiment, includes passing battery voltage directly from monitor battery 16 through to faux battery 18 (and thus camera 12). This would span a range of voltages. System 10 of the present disclosure also contemplates regulating monitor battery 16's voltage so that it is within that same window for powering camera 12. This voltage regulation embodiment would apply in the case where battery 16 had a higher voltage than camera 12 could accept.

Accordingly, the system 10 of the present disclosure includes a range of voltages (those acceptable to camera 12) regarding the power output (despite the existence or non- existence of voltage regulation). In one embodiment, this may include a range of 12v - 5v. In an alternate embodiment, it would include a range of 9v - 6v. In a more preferred embodiment, the range is 8.5v - 6.5v. In a most preferred embodiment, the voltage is approximately 7.2v.

Referring back to FIG. 6, monitor 14 may include a base microcontroller 70, which shall also be referred to herein as processor 70. Battery life may be monitored by the processor and displayed on the monitor 14 This may, for example, be displayed as actual battery voltage or depicted as“Battery %”. Actual battery voltage could be read/determined via analog to digital (A/D) converter 74 and displayed per processor 70 on the LCD screen of monitor 14. Battery percentage (%) remaining could be a calculated percentage based off of the battery voltage.

A monitor power supply unit (PSU) 72 provides power to an LCD display of monitor 14. Processor 70 may control monitor PSU 72 to cycle between a display/active mode and a sleep (inactive/non-display) power saving mode. System 10 is thus capable of maximizing battery life by using a shutdown / sleep mode when camera 12 is off and wake up when camera 12 is switched on.

This method of shutdown / sleep is software controlled in processor 70 via signaling through HDMI connection 30 from camera 12 to monitor 14. A low drop out (LDO) regulator 76 may be employed to maintain battery voltage to processor 70 even in an inactive or sleep condition/mode. In this way, when processor 70 receives a signal from camera 12 through HDMI cable 30 that camera 12 has been turned on or activated, processor 70, likewise activates the LCD screen on monitor 14 via monitor PSU 72. Alternately, when processor 70 receives a signal through HDMI cable 30 that camera 12 has been turned off, processor 70 inactivates the LCD screen on monitor 14 via monitor PSU 72.

It is to be understood that the terms "including", "comprising", "consisting" and grammatical variants thereof do not preclude the addition of one or more components, features, steps, or integers or groups thereof and that the terms are to be construed as specifying components, features, steps or integers.

If the specification or claims refer to "an additional" element, that does not preclude there being more than one of the additional element.

It is to be understood that where the claims or specification refer to "a" or "an" element, such reference is not be construed that there is only one of that element.

It is to be understood that where the specification states that a component, feature, structure, or characteristic "may", "might", "can" or "could" be included, that particular component, feature, structure, or characteristic is not required to be included.

Where applicable, although state diagrams, flow diagrams or both may be used to describe embodiments, the invention is not limited to those diagrams or to the corresponding descriptions. For example, flow need not move through each illustrated box or state, or in exactly the same order as illustrated and described.

Methods of the present invention may be implemented by performing or completing manually, automatically, or a combination thereof, selected steps or tasks. The term "method" may refer to manners, means, techniques and procedures for accomplishing a given task including, but not limited to, those manners, means, techniques and procedures either known to, or readily developed from known manners, means, techniques and procedures by practitioners of the art to which the invention belongs.

The term“at least” followed by a number is used herein to denote the start of a range beginning with that number (which may be a ranger having an upper limit or no upper limit, depending on the variable being defined). For example,“at least 1” means 1 or more than 1. The term“at most” followed by a number is used herein to denote the end of a range ending with that number (which may be a range having 1 or 0 as its lower limit, or a range having no lower limit, depending upon the variable being defined). For example,“at most 4” means 4 or less than 4, and“at most 40%” means 40% or less than 40%. Terms of approximation (e.g.,“about”,“substantially”,“approximately”, etc.) should be interpreted according to their ordinary and customary meanings as used in the associated art unless indicated otherwise. Absent a specific definition and absent ordinary and customary usage in the associated art, such terms should be interpreted to be ± 10% of the base value.

When, in this document, a range is given as“(a first number) to (a second number)” or“(a first number) - (a second number)”, this means a range whose lower limit is the first number and whose upper limit is the second number (or vice-versa). For example, 25 to 100 should be interpreted to mean a range whose lower limit is 25 and whose upper limit is 100. Additionally, it should be noted that where a range is given, every possible subrange or interval within that range is also specifically intended unless the context indicates to the contrary. For example, if the specification indicates a range of 25 to 100 such range is also intended to include subranges such as 26 -100, 27-100, etc., 25-99, 25-98, etc., as well as any other possible combination of lower and upper values within the stated range, e.g., 33- 47, 60-97, 41-45, 28-96, etc. Note that integer range values have been used in this paragraph for purposes of illustration only and decimal and fractional values (e.g., 46.7 - 91.3) should also be understood to be intended as possible subrange endpoints unless specifically excluded.

It should be noted that where reference is made herein to a method comprising two or more defined steps, the defined steps can be carried out in any order or simultaneously (except where context excludes that possibility), and the method can also include one or more other steps which are carried out before any of the defined steps, between two of the defined steps, or after all of the defined steps (except where context excludes that possibility).

* * * *

Thus, the present invention is well adapted to carry out the objects and attain the ends and advantages mentioned above as well as those inherent therein. While presently preferred embodiments have been described for purposes of this disclosure, numerous changes and modifications will be apparent to those skilled in the art. Such changes and modifications are encompassed within the spirit of this invention as defined by the appended claims.