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Patent Searching and Data


Matches 451 - 500 out of 4,502

Document Document Title
WO/1993/014563A1
An improved digital switching amplifier is disclosed. The amplifier utilizes a low-pass filter (LPF) at the input of the switching comparator (U1) to give an improved signal to noise ratio at the final output (Vf). In another aspect of t...  
WO/1993/010598A1
A device for modifying the pulse duty factor or the pulse number density of a signal sequence has a ramp generator (10) and a first storage (12) with a stored value that predetermines the pulse duty factor or the pulse number density. Ou...  
WO/1993/009599A2
A two-step analog-to-digital converter (300) and BiCMOS fabrication method to make the converter. The fabrication method provides pseudosubstrate isolation of digital CMOS devices from analog devices. The converter uses NPN current switc...  
WO/1992/009187A1
Variable width pulse generator comprising an assembly of logic stages which are connected in cascade. Each stage is arranged in order to receive one signal amongst a set of clock signals with different phase and corresponding to one of t...  
WO/1991/020074A1
A drive circuit for a liquid crystal display converts a display information signal (203) to an n bit gray scale code to control the brightness at a prescribed pixel. A counter (220) receives the m most significant bits of the n bit gray ...  
WO/1991/007011A1
The coding scheme involves transmitting a series of pulses, the separations between successive pulses representing the same data. Even though the separations between successive pulses all represent the same data, the separations are all ...  
WO/1990/011646A1
A process and device for voltage-frequency conversion are useful for obtaining, by simple means, a rapid, high-precision voltage-frequency convertor with a large frequency sweep. To this end, the dicontinuous output signal of an integrat...  
WO/1989/000739A1
A multiphase multiplier circuit employs analog switches, each of which is duty controlled for multiplying input voltage signal with a multiplier determined depending on the duty cycle of ON/OFF period. The multiphase multiplier circuit f...  
WO/1988/002201A1
A system for companding digital audio signal samples processes the digital audio signal samples to correct errors induced by the compression and expansion processes. These errors are calculated prior to compressing the samples. The error...  
WO/1988/002199A1
A system and method for modulating a carrier signal wherein occurence of the peaks in the modulated carrier signal conveys clocking information and each transition of a modulated carrier signal includes two midrange characteristics, the ...  
WO/1987/003434A1
Serial information bits are represented by a signal which alternates between two levels and remains at each level for a time representative of the information bit being represented. The serial bits are produced by sampling of a set of pa...  
WO/1986/007509A1
An apparatus for controllably producing a duty cycle modulated DC signal in response to receiving an analog voltage signal is useful, for example, in sensing mechanical motion and providing a responsive digital signal for use in a contro...  
WO/1986/007219A1
A phase modulator comprises an integrator (1) arranged to provide an output voltage (V) which can be changed from an initial level (V1), means (3) operative to effect change, at a time dependent upon receipt by the phase modulator of a c...  
WO/1985/004293A1
A control circuit having a drive circuit that operates in response to pulse-width modulated control signals to control a unit to be controlled. A first d-c voltage level is applied by a bias circuit (15) to an analog control signal. A tr...  
WO/1985/001847A1
The circuit arrangement of the current-impulse converter with variable time constant includes a digital gate, a feedback tag, a control capacitor and a charging capacitor, electronic switches connected serially to control capacitors. The...  
WO/1985/000257A1
Method for reading the signal to be detected according to the signal value and independently from the frequency range, as well as circuitry for implementing such method. The method according to the present invention is characterized in t...  
WO/1984/001244A1
Apparatus for converting an analog-format electrical signal or quantity (such as the magnitude of an electrical circuit element) into a corresponding pulse-format signal, preferably in the form of a train of periodic pulses the lenghts o...  
WO/1983/004148A1
A circuit for changing the frequency of a pulse train (10) in response to a change in the average value of an applied digital signal (18) applies the signal to be changed to a pulse subtractor (12). Application of a predetermined number ...  
WO/1982/002462A1
CVSD modulation is detected by applying a digital signal containing CVSD information to a digital filter (12) that is in the CVSD loop. The digital filter includes voltage-operated switches (40) that switch one of two voltages to a resis...  
WO/1981/001084A1
A circuit arrangement for an asynchronous motor drive of controlled stepping, i.e. for control of the number of revolutions of asynchronous squirrel-cage motors, in which the output of the supply unit is connected to a potentiometer, the...  
WO/1980/002457A1
A converter (photodiode 1) exposed to solar radiation (2) provides a d.c. current proportionnal to the radiation, charging a charge capacitor (3). This capacitor is connected at the input (11) of an analogue-digital switch (12) which pro...  
WO/1980/000206A1
Precision integrator with incremental outputs of the type comprising an operational amplifier mounted as an integrator, an analogue adder which does the summing up of currents I1, I2 at the input of the integrator, caracterized in that t...  
JP2018148510A
【課題】RF帯のパルス幅変調信号の品質を 改善する。【解決手段】通信装置は、送信シ ンボルの振幅および位相を表す振幅成分信号 および位相成分信号に基づいて変調信号...  
JP2018525868A
[Means for Solution] A digital microprocessor device (2) has a central processing unit, and a memory (8) and an output signal module (4). A counter (6) arranged so that the output signal module might be counted to a predetermined count v...  
JP6382473B1
Switch outputting part 100 which pulse control device 10 generates pulse output voltage Vo from direct-current input voltage Vi, and it supplies to load (for example, relay coil 21 of Mechanical relay 20), It has low pass filter part 300...  
JP6370201B2  
JP6356140B2  
JP2018518083A
In order to transmit a plurality of GPIO signals as a virtual GPIO signal, a multi-modulation method which combines Pulse Density Modulation and a phase modulation is provided.  
JP6337809B2  
JP6332080B2  
JP6332319B2  
JP2018049451A
To avoid the situation that a standby processing execution unit must wait for input of a next header area when being switched to.Responsive to determining that a calculation sub-core module (hereafter referred to as calculation module) 2...  
JP2018050264A
To provide a data transmission system capable of relaxing a trade-off relationship between transmission speed and power consumption.The data processing circuit includes: pre-processing means for pre-processing data; and generating means ...  
JP6295982B2  
JP6298374B2  
JP2018038051A
To provide a signal processing circuit capable of suppressing power consumption and outputting a stable output signal in driving a circuit including a load with constant voltage and current states when an output retained at a register is...  
JP2018037931A
To provide a signal processing circuit capable of mixing an analog signal and a digital signal and outputting the mixed signal from one terminal in spite of a small circuit configuration.A signal processing circuit 1 having analog input ...  
JP6278626B2  
JP6269667B2  
JP2017502273A5  
JP2018007033A
[Subject] Even if there is change of target specifications, such as a cycle etc. of a pulse signal to generate, highly precise control of a pulse signal is realized easily. [Means for Solution] Clock generation part 44 is cycle T.1-T4 of...  
JP2017227737A
[Subject] It is concerned with power supply environment, and there is nothing, there is no difference of resolution of PWM control, and it is in providing an image forming device etc. which can perform more subdivided temperature control...  
JP2017225210A
[Subject] In a power converter and a relay which need AD translations, such as voltage and current, a highly precise AD translation is realized at low cost, without using an expensive high frequency PLL circuit. [Means for Solution] Usin...  
JP2017220438A
[Subject] Provide phase control and a PWM converter which can modulate stably the light of LED luminaire which carries out PWM modulated light of the unstable signal of phase control type dimmer control with a converter which carries out...  
JP2017536577A
[Subject] The present invention provides an arrangement board, and a display and a drive method for the same. [Means for Solution] A data drive circuit which an arrangement board is provided outside an effective display field provided wi...  
JP6225526B2  
JP6227890B2  
JP2017085424A5  
JP6217737B2  
JP6219087B2  

Matches 451 - 500 out of 4,502