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WO/2001/001573A1 |
The invention relates to a phase-locked loop system for tuning the receive frequency of a receiver for digitally and analogly modulated receive signals, comprising at least one voltage-controlled oscillator (29, 45) for generating an osc...
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WO/2001/001572A1 |
In order to rapidly and reliably detect a receive signal, the integrated circuit for detecting a receive signal has an intermediate frequency detector (ZFZ). If the intermediate frequency (fZF) is located within a given range (win), said...
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WO/2001/001590A1 |
An automatic frequency control circuit has a frequency difference estimating section for finding a phase variation based on a base signal included in the received signal, the average value, and the signal powers corresponding to the cand...
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WO/2000/076165A1 |
On the transmitter side, a known signal of continuous N¿p? symbols is periodically inserted into an information signal of (N¿F?-N¿p?) symbols, and a signal of N¿F? symbols is transmitted. On the receiver side, the transmitted signal ...
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WO/2000/075767A1 |
Electronic devices (16, 17) can be controlled by a control unit (11), which in turn is responsive to infrared commands (33) received from a remote (12) utilized by an operator. The remote has a touch-panel display (49), on which images c...
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WO/2000/074237A1 |
Method for tuning the reception of radio broadcast signals to an FM RDS transmitter using program related data and transmitter related data and receiver executing the method, providing a band scanning search for detecting FM RDS transmit...
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WO/2000/074233A1 |
An IF VGA utilizes distorsion cancellation achieved with cross coupled differential pair amplifiers having their VDs dynamically modified in conjunction with current steering of the differential pairs sources.
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WO/2000/072446A1 |
An integrated VCO (4532) having an improved tuning range over process and temperature variations. There is therefore provided in a present embodiment of the invention an integrated VCO. The VCO comprises, a substrate, a VCO tuning contro...
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WO/2000/067376A1 |
A method and apparatus for fully integrating a Voltage Controlled Oscillator (VCO) on an integrated circuit. The VCO is implemented using a differential-mode circuit design. The differential-mode implementation of the VCO preferably comp...
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WO/2000/067384A1 |
A monolithic AM transmitter is disclosed. An external antenna forms part of a resonance network so that the antenna resonance point is automatically tuned to the transmit frequency. This provides flexibility with no added cost to the tra...
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WO/2000/065826A2 |
A receiver is disclosed which is conventionally tuned to a desired channel be entering a user-defined program number (71) or operating a program up/down key (72) on a remote control device (7). The remote control further includes favorit...
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WO/2000/064051A1 |
Systems and methods are described for carrier tracking. A center frequency of a signal having substantially equal spectral power on both sides of said center frequency is tracked by comparing spectral power contents of filtered versions ...
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WO/2000/064052A1 |
A method and system involving determination of signal response of a plurality of tunable resonance modules; sensing at least a first primary analogue signal from a first one of said transmitter signals; analog-to-digital converting said ...
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WO/2000/064050A1 |
A tuning system (102) is described that is capable of receiving a number of different broadcast types such as analog (114) or digital satellite (116), cable (110, 112), Internet (118), and terrestrial airwave broadcasts (104, 106, 108). ...
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WO/2000/062419A2 |
An integrated receiver with channel selection and image rejection is substantially implemented on a single CMOS integrated circuit. A receiver front end provides programable attenuation and a programable gain low noise amplifier. LC filt...
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WO/2000/060534A1 |
The invention relates to a remote control apparatus for controlling a display apparatus. The remote control comprises an image sensor (7) and imaging optics (8) for projecting an image, for example of the display screen (2), on the image...
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WO/2000/058749A1 |
Mobile radio receivers nowadays comprise for example R(B)DS to give the possibility to listen to one station when travelling over the coverage range of a FM-transmitter. To improve the mobile radio receiver the invention concerned suppli...
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WO2000019641A9 |
A low-power radio transceiver comprising a loop filter/sample and hold circuit (66) for storing the VCO (32), control voltage (40), thereby allowing the PLL in the synthesizer (2), to be opened and closed with minimum output frequency dr...
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WO/2000/055981A1 |
The invention relates to a transmitter-receiver with an HF receiver, especially a UHF receiver, comprising a digital signal unit in a digital part (DIT), an input part, at least one mixer and an intermediate frequency/base band processin...
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WO/2000/056064A1 |
A multimedia system (300) is described that is capable of presenting multimedia segments including television broadcasts, radio broadcasts, stored video information, stored audio information, and Web pages. The multimedia system (300) in...
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WO/2000/055970A2 |
A tuning system (102) is described that is capable of receiving a number of different broadcast types such as analog (114) or digital satellite (116), cable (110, 112), Internet (118), and terrestrial airwave brodcasts (104, 106, 108). T...
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WO/2000/054405A1 |
The invention relates to a resonator (200, 300) with variable resonance frequency, intended for connection to an amplifier, thus forming an oscillator, said resonator comprising a resonator circuit (205, 305) for deciding the resonance f...
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WO/2000/051237A1 |
The invention comprises a frequency tracking loop and method of frequency tracking for a digital radio communications system. The invention also extends to a digital radio communications receiver which comprises a frequency tracking loop...
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WO/2000/051090A1 |
A passive remote control device (20, 50) is powered remotely by a radio frequency exciter/receiver ((14, 42) and used in a remote control system (100, 200) to control operation of a controlled device (10, 40), such as, for example, a tel...
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WO/2000/051235A1 |
Method for processing transmitter and program related data in an FM RDS receiver and receiver executing the method, providing a band scanning search for detecting FM RDS transmitters exceeding a predetermined reception quality level. To ...
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WO/2000/049799A1 |
A tuner unit (1) generates a local oscillation signal for multiplication by a received first IF signal and then for conversion in frequency, and converts the frequency-converted signal into a base band signal. A demodulation unit (2) det...
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WO/2000/049781A1 |
The invention relates to a method for detecting a pulse sequence of known values and known length in a signal. According to said method, it is estimated on the basis of the polarity sign of the phase differential of samples of the signal...
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WO/2000/045399A1 |
An integrated circuit inductor comprises a spiral pattern disposed upon a substrate. The track of the spiral designed is divided into multiple tracks to form a multi-track-inductor. The individual tracks are disposed side by side and in ...
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WO/2000/045511A1 |
The present invention provides On-Demand Radio ('ODR') features to provide ODR radio listeners with personalized news, entertainment, advertising and other information in an audible form ('On-Demand Radio' or 'ODR'). The ODR radio unit (...
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WO/2000/045512A1 |
The invention relates to a tuning arrangement for tuning a resonance module for wireless applications, e.g. wireless communication for a base station for mobile telephony system. It comprises means for deriving the input and the output p...
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WO/2000/045513A1 |
The invention relates to a remote-controlled equipment (3) which is provided with a signal receiver (1) that is elastically fixed on the equipment (3) via spring means (2) on a housing (12) of the equipment. This arrangement makes it pos...
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WO/2000/044097A1 |
A method for calibrating a frequency device by monitoring its output cycles over a first plurality of monitoring windows is disclosed. An accumulation of these monitored cycles is used to determine a correction for the device over a seco...
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WO/2000/042712A1 |
A detector (104) for detecting known symbols determines whether a signal is transmitted. If the detector (104) does not detect the reception of a signal, a circuit (105) for setting a de-spreading code controls a de-spreading circuit (10...
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WO/2000/038320A1 |
A narrow band radio receiver (1) comprises a signal mixer (5) which mixes the received signal with a variable frequency output signal received from a variable frequency signal generating circuit (6). A signal, the frequency of which is t...
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WO/2000/038357A1 |
A receiver for receiving broadcast of multiplexed data on many channels, in which a channel of high bit rate providing a higher quality or more various service is automatically preset. More particularly, a digital broadcast receiver for ...
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WO/2000/038323A1 |
A frequency synthesizer module with temperature compensation of a crystal oscillator circuit (12) frequency controlled by a varactor (14). A module memory (18) contains information characterizing a temperature dependency of a crystal (10...
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WO/2000/036829A1 |
A method for searching a predetermined satellite channel by making use of information available from the satellite. The method comprises three steps. The first step is searching for a service channel from the satellite, if found then the...
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WO/2000/036431A1 |
A method and an apparatus which acquire satellite positioning system (SPS) signals in an SPS receiver. Information on time of day, approximate receiver location, and satellite positions are used to reduce the time to search and acquire s...
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WO/2000/035088A1 |
A receiver (REC) is tunable (TUN) to any one of a plurality of channels (CH) by means of channel-select commands (CSC). The receiver tunes to (SRCH) a channel (CH[i]) with a signal (S) having a channel identification (CHIND) that identif...
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WO/2000/031868A1 |
The invention relates to a frequency-stabilised transmitting/receiving circuit. A circuit configuration has a high frequency part (11) with a receive mixer stage (13, 14) and a signal-processing circuit (1) with an AD converter (6), a di...
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WO/2000/030312A1 |
A method for selecting a frequency offset for automatic frequency correction in a pilot symbol assisted demodulation system comprises the steps of receiving a signal comprising a plurality of symbols having discrete possible values, and ...
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WO/2000/030254A1 |
A receiver for digital terrestrial broadcasting, which can receive a digital broadcasting of a channel that the user wants to receive without any error by solving the problems caused by the transition of terrestrial broadcasting from the...
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WO/2000/028664A2 |
An integrated receiver with channel selection and image rejection substantially implemented on a single CMOS integrated circuit is described. A receiver front end provides programable attenuation and a programable gain low noise amplifie...
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WO/2000/028665A1 |
A radio communication device, which transmits or receives a signal at a predetermined carrier frequency. The device includes a reference oscillator (24), which generates a clock frequency having a clock frequency error relative to a spec...
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WO/2000/027030A1 |
An option is selected from a plurality of options by selecting a soft key from a plurality of displayed soft keys, each corresponding with a respective one of the options. The soft keys are displayed as a number of distinguishable groups...
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WO/2000/025427A1 |
Frequency synthesizers are used for down conversion of RF signals in a lot of applications such as digital and analog radio and television receivers, car radios id. By combining the voltage-controlled oscillator of the phase locked loop ...
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WO/2000/021206A1 |
A wideband receiver (10) comprises a frequency converter (16) for converting the frequency of a signal inputted through an antenna (12) by using a local oscillation signal from a local oscillator (18); a wideband filter (20) for receivin...
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WO/2000/019626A1 |
The inventive mobile radiotelephone terminal has a transmitting step, a receiving step and an antenna switching and adapting step, each of which have an arrangement of passive components to which a plurality of electrostatic-mechanical m...
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WO/2000/019607A1 |
Disclosed is a dual band wireless phone, such as a cellular phone for a mobile communications system, with a dual band transmitter (1) that includes a phase-locked loop (PLL) (73). The dual band transmitter (1) includes first and second ...
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WO/2000/019606A1 |
Methods and apparatus for selecting a channel in a digital transmission system are described. In one implementation, the selecting of a channel includes: receiving a major and a minor channel number sequence in which a delimiter separate...
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