| Patents for H03K 4 - Generating pulses having essentially a finite slope or stepped portions (2,412) |
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| 02/11/2010 | US20100035661 Photoelectric conversion device and electronic device having the same |
| 02/11/2010 | US20100033215 Method and Apparatus for Constant On-Time Switch Mode Converters |
| 01/20/2010 | CN101632225A Method an apparatus for producing triangular waveform with low audio band noise content |
| 01/19/2010 | US7649284 High-voltage pulse generating circuit |
| 01/14/2010 | US20100007387 Triangular wave generating circuit having synchronization with external clock |
| 01/13/2010 | CN101626225A Sawtooth wave generating circuit and switch mode power supply having the same |
| 01/07/2010 | US20100001707 Stepwise ramp voltage generator |
| 01/07/2010 | DE112008000205T5 Differenzialamplitudengesteuerter Sägezahngenerator Differential amplitude controlled sawtooth |
| 01/06/2010 | CN100578933C Full digital sliding pulse signal generator |
| 01/05/2010 | US7642820 Triangle wave generator and spread spectrum control circuit thereof |
| 12/29/2009 | US7639051 Circuit arrangement for rectifying the output voltage of a sensor that is fed by an oscillator |
| 12/24/2009 | US20090315529 Sawtooth wave generating circuit and switch mode power supply device having the same |
| 12/22/2009 | US7636547 Reactance adjuster, transceiver and transmitter using the reactance adjuster, signal processing circuit suitable for use in the reactance adjuster, the transceiver, and the transmitter, reactance adjusting method, transmitting method, and receiving method |
| 12/17/2009 | US20090309636 Triangle wave generator and switching regulator |
| 12/17/2009 | US20090309635 Constant slope ramp circuits for sampled-data circuits |
| 12/16/2009 | CN201365234Y Multifunctional oblique-wave generator |
| 12/16/2009 | CN101604906A Triangle wave generator and switching regulator |
| 12/16/2009 | CN101603543A Method for setting rotating speed of fan by utilizing RC frequency |
| 12/02/2009 | EP2127078A1 Method and apparatus for producing triangular waveform with low audio band noise content |
| 12/01/2009 | US7626430 Triangular-wave generating apparatus incorporating capacitor |
| 11/18/2009 | CN101584117A Differential amplitude controlled sawtooth generator |
| 11/03/2009 | US7613538 Compensation for distortion in contact lithography |
| 10/29/2009 | US20090267656 Precision triangle waveform generator |
| 10/21/2009 | CN101562442A Frequency jittering circuit and low-frequency triangle wave generator |
| 10/14/2009 | EP2109220A1 Method and driver switch for controlling a voltage semiconductor |
| 10/14/2009 | CN101557210A Circuit for generating sawtooth waves and clock signals |
| 10/08/2009 | WO2009121296A1 Trapezoidal fire pulse generation method and device |
| 10/08/2009 | US20090251178 Ultra Low Power Servo-Controlled Single Clock Ramp Generator with Amplitude Independent to Clock Frequency |
| 10/07/2009 | EP1728324B1 Control circuitry for controlling a power electronic circuit and method therefor |
| 09/23/2009 | CN101540585A Amplifier |
| 09/15/2009 | US7589512 Load control device |
| 09/10/2009 | US20090224807 Jitter reduction circuit and frequency synthesizer |
| 09/09/2009 | CN101527546A D-type power amplifier |
| 09/03/2009 | US20090219064 Pulse generator circuit and communication apparatus |
| 09/02/2009 | CN100536319C Drive circuit able to gradually increase and reduce voltage |
| 09/01/2009 | US7583113 Sawtooth oscillator having controlled endpoints and methodology therefor |
| 08/13/2009 | WO2008092033A8 Method and apparatus for producing triangular waveform with low audio band noise content |
| 08/11/2009 | US7573250 Method and apparatus for calibrating a ramp signal |
| 08/06/2009 | WO2009095279A1 Mixing waveforms |
| 08/05/2009 | CN201285505Y PWM control circuit with minimum duty ratio adjustable |
| 07/30/2009 | WO2009092448A1 Electronic ballast and method for controlling at least one light source |
| 07/23/2009 | WO2009090703A1 Ramp wave output circuit, analog/digital conversion circuit, and camera |
| 07/21/2009 | US7564277 Control circuits |
| 07/09/2009 | US20090174442 Ramp generator and image sensor including the same |
| 07/07/2009 | US7557622 Precision triangle waveform generator |
| 07/07/2009 | US7557602 Pre-emphasis circuit including slew rate controllable buffer |
| 07/01/2009 | CN201266913Y Triangular-wave generator |
| 07/01/2009 | CN100508390C Oscillation signal producing method and apparatus |
| 06/30/2009 | US7554370 Method and system for synchronizing phase of triangular signal |
| 06/25/2009 | US20090160503 Triangle wave generator and spread spectrum control circuit thereof |
| 06/03/2009 | CN100495512C Driving apparatus of a liquid crystal display |
| 05/28/2009 | US20090134921 Slope compensation method and circuit for a peak current control mode power converter circuit |
| 05/27/2009 | EP2063531A1 Amplifying unit, method of output control and control program |
| 05/26/2009 | US7538602 Semiconductor integrated circuit with stepped-down voltage generating circuit |
| 05/26/2009 | US7538586 Transmitter for a controlled-shape switched signal on a communication line |
| 05/20/2009 | EP2061149A1 Triangular waveform generating circuit, generating method, inverter using them, light emitting device and liquid crystal television |
| 05/13/2009 | CN101431323A Triangular-wave generator |
| 05/13/2009 | CN101431322A Waveform generator and plasma display device using the same |
| 05/13/2009 | CN100488036C D type amplifier and modulating method thereof |
| 05/06/2009 | CN101425795A Accurate saw-tooth wave generating circuit |
| 05/06/2009 | CN101425784A Non-filter D type audio amplifier based on chaotic spread-spectrum modulation technique |
| 04/23/2009 | WO2009051499A1 Signal simulation apparatus and method |
| 04/22/2009 | EP2050108A2 Devices and methods for redistributing magnetic flux density |
| 04/22/2009 | CN101416388A Circuit and apparatus for reducing interference of digital signals |
| 04/22/2009 | CN101414811A Ramp voltage circuit |
| 04/09/2009 | DE102008047624A1 Rampenspannungsschaltkreis Ramp voltage circuit |
| 04/09/2009 | DE102007045384A1 Digital voltage ramp generator for use in current reference circuit, has digital to analog converters delivering respective converted-voltages with respective preset converted-step heights, where one height is smaller than another height |
| 04/08/2009 | CN101404487A Triangular wave generation method and its circuit |
| 04/07/2009 | US7514971 Pulse width modulation current adjustment apparatus |
| 04/02/2009 | US20090085617 Ramp voltage circuit |
| 04/02/2009 | US20090085526 Circuit for generating triangular waveform having relatively short linear rise time and substantially long linear fall time |
| 04/01/2009 | EP2043265A1 Integrated circuit oscillator with improved frequency stability |
| 03/31/2009 | US7511541 Electronic driver device for an external load for which the slew rate of the output signal is independent of the external load capacity and the corresponding integrated component |
| 03/25/2009 | CN101394166A Triangle wave generating circuit, pulse width modulation circuit and audio power amplifying circuit |
| 03/25/2009 | CN101394165A Differentiation hysteresis comparator and application thereof |
| 03/24/2009 | US7508243 Triangular wave generation circuit |
| 03/18/2009 | CN101388234A Multimedia playing system with lighting display device |
| 03/04/2009 | EP2030388A1 Lin network, integrated circuit and method therefor |
| 02/19/2009 | US20090045862 Clock generating circuit of semiconductor memory apparatus |
| 02/18/2009 | CN201197114Y Pulse width modulation structure with regulation work period |
| 02/17/2009 | US7492229 Method and apparatus to improve frequency stability of an integrated circuit oscillator |
| 02/12/2009 | WO2009020984A1 Time-multiplexed-capacitor dc/dc converter with multiple outputs |
| 02/10/2009 | US7489975 Power supply device, information processing apparatus, and power control method |
| 02/04/2009 | CN100459431C Circuit for optimizing Zener diode bias current |
| 01/29/2009 | US20090027092 Method and apparatus for producing clean, undistorted variable voltage 50 - 60 hz sine wave |
| 01/28/2009 | EP1040577B1 Detector for the recognition of missing impulses |
| 01/28/2009 | CN101356733A Triangular waveform generating circuit, generating method, inverter using them, light emitting device and liquid crystal television |
| 01/28/2009 | CN101356732A Pulse generator, electronic device using the same, and pulse generating method |
| 01/28/2009 | CN101355349A Circuit and method for generating triangular wave |
| 01/28/2009 | CN101354584A Multichannel analog signal generator |
| 01/15/2009 | DE102004050464B4 Ausgangsschaltung Output circuit |
| 01/07/2009 | CN101341655A Electronic circuit with low noise delay circuit |
| 01/07/2009 | CN100449356C Triangular wave phase modulation method of resonant cavity optical fiber gyroscope and apparatus thereof |
| 12/31/2008 | WO2008089269A3 Differential amplitude controlled sawtooth generator |
| 12/30/2008 | US7471532 Electric circuit, in particular for a medium-voltage power converter |
| 12/30/2008 | US7471125 Sawtooth wave generating apparatus, a method of generating sawtooth wave, a constant current circuit, and a method of adjusting amount of current from the same |
| 12/17/2008 | EP2002543A1 Circuit and apparatus for reducing interference of digital signals |
| 12/17/2008 | CN101325408A Circuit for generating triangular wave |
| 12/11/2008 | US20080303563 Triangular wave generator |
| 12/04/2008 | WO2008148024A1 Method and apparatus for communicating with root-nyquist, self-transform pulse shapes |