Patents for H03K 5 - Manipulating pulses not covered by one of the other main groups in this subclass (25,714) |
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10/01/1991 | US5053651 Deglitched digital mixer circuit |
10/01/1991 | US5053649 Method and apparatus for high speed phase detection |
10/01/1991 | US5053645 Threshold logic circuit |
10/01/1991 | US5053639 Symmetrical clock generator and method |
10/01/1991 | CA1290045C Broadband signal switching equipment |
10/01/1991 | CA1290044C Broadband signal switching equipment |
09/25/1991 | EP0448048A2 A signal detecting circuit for detecting a signal specified in a designated frequency |
09/25/1991 | EP0447729A2 Level detector hardened against noise |
09/24/1991 | US5052032 Clock formation circuit |
09/24/1991 | US5051630 Accurate delay generator having a compensation feature for power supply voltage and semiconductor process variations |
09/24/1991 | US5051629 Signal delay and reproduction device and method |
09/24/1991 | US5051626 Buffer circuit for logic level conversion |
09/24/1991 | US5051616 Zero crossing detector arrangements |
09/24/1991 | CA1289632C Clock-signal regenerator comprising a crystal oscillator incorporated in a phase-locked loop |
09/22/1991 | WO1991015060A1 High speed logic and memory family using ring segment buffer |
09/22/1991 | CA2078778A1 High speed logic and memory family using ring segment buffer |
09/18/1991 | EP0446891A2 Laser beam controller |
09/18/1991 | EP0446527A2 Method and circuit for controlling the frequency of an electronic inverter |
09/17/1991 | US5049767 Shared inverter outputs delay system |
09/17/1991 | CA1289205C Symmetric integrated amplifier with controlled dc offset voltage |
09/17/1991 | CA1289193C Programmable level shifting interface device |
09/13/1991 | CA2036145A1 Method and circuit for controlling the frequency of an electronic inverter |
09/11/1991 | EP0445574A2 Digital clock buffer circuit providing controllable delay |
09/11/1991 | EP0445359A1 Transcutaneous electrical nerve stimulation apparatus |
09/11/1991 | EP0445170A1 Process for recovering a coded signal sequence |
09/10/1991 | US5048065 Method and circuit for controlling the frequency of an electronic inverter |
09/10/1991 | US5047659 Non-overlapping two-phase clock generator utilizing floating inverters |
09/10/1991 | US5047657 Integrated circuit comprising a signal level converter |
09/10/1991 | CA1288830C Apparatus and method for capacitor coupled complementary buffering |
09/10/1991 | CA1288828C Clock pulse generator for microcomputer |
09/06/1991 | CA2037593A1 Digital clock buffer circuit providing controllable delay |
09/05/1991 | WO1991013363A2 Signal conditioning circuit |
09/05/1991 | DE4006694A1 Digital ON and OFF delay for rectangular signals - feeds signal to cycled forward and backward counter via anti-valence gate |
09/05/1991 | DE4002367A1 Recovering coded signal sequence from film - digitising signals and eliminating DC component using regulating loop |
09/04/1991 | EP0444683A2 Semiconductor circuit device with input threshold value correction circuit |
09/04/1991 | EP0444363A2 Current-pulse integrating |
08/28/1991 | CN1013724B Clock signal generation system |
08/27/1991 | US5043660 Signal processing circuit for movement tracking encoder including positive and negative feedback means to reduce distortion |
08/27/1991 | US5043653 Noise filter for zero crossing detector |
08/27/1991 | US5043606 Apparatus and method for programmably controlling the polarity of an I/O signal of a magnetic disk drive |
08/27/1991 | US5043601 Wide-band amplifier useful for squarewave signals |
08/27/1991 | US5043599 CMOS differential comparator with offset voltage |
08/22/1991 | DE4102885A1 Impulsformungssystem fuer festplattenlaufwerke Pulse shaping system for fixed disk drives |
08/21/1991 | EP0442829A1 Clock frequency doubler |
08/21/1991 | EP0442688A2 Switching circuit |
08/21/1991 | EP0442668A2 High speed low skew clock circuit |
08/21/1991 | EP0442619A2 Circuit |
08/21/1991 | EP0442618A1 CMOS clamp circuits |
08/21/1991 | EP0442001A1 Comparator circuit |
08/21/1991 | EP0441957A1 Adjustable clock generator circuit |
08/21/1991 | CN1053977A Modulation method of control signal |
08/20/1991 | US5042066 Dialer circuit |
08/20/1991 | US5041744 Chopper type comparator |
08/20/1991 | US5041738 CMOS clock generator having an adjustable overlap voltage |
08/14/1991 | EP0441684A1 Phase lock circuit and resulting frequency multiplier |
08/14/1991 | EP0441200A2 Sense amplifier and method for sensing the outputs of static random access memory cells |
08/14/1991 | EP0440894A2 Trigger circuit with self-adjusting reference value |
08/14/1991 | EP0440835A1 Differential current circuit breaker with transducer with device for balancing pulse signals |
08/13/1991 | US5039950 Multiple clock synthesizer |
08/13/1991 | US5039893 Signal delay device |
08/08/1991 | WO1991011858A1 Cmos level shifter circuit |
08/07/1991 | WO1991012666A1 Phase-locked circuit and frequency multiplier obtained |
08/07/1991 | EP0440357A2 Self-calibrating clock synchronisation system |
08/07/1991 | CN2082486U Flip-flip of voltage zero passage with lower power and that may be integrated |
08/06/1991 | US5038055 Peak level detecting device and method |
07/31/1991 | EP0439310A2 Semiconductor device for preventing malfunction caused by a noise |
07/31/1991 | EP0439203A2 Variable delay circuit |
07/31/1991 | EP0439178A1 Pulse phase difference encoding circuit |
07/31/1991 | EP0179153B1 A programmable logic array device using eprom technology |
07/31/1991 | CN1053522A Sync tip clamp circuitry |
07/30/1991 | US5036528 Self-calibrating clock synchronization system |
07/30/1991 | US5036232 Push-pull output stage of integrated circuit providing enhanced high-low voltage level signal transition with ground bounce control |
07/30/1991 | US5036230 CMOS clock-phase synthesizer |
07/30/1991 | US5036223 Inverter circuit and chopper type comparator circuit using the same |
07/30/1991 | US5036221 Circuit for eliminating metastable events associated with a data signal asynchronous to a clock signal |
07/30/1991 | US5036216 Video dot clock generator |
07/25/1991 | DE4001555A1 Digital oscillator generating frequency controlled signal - forms transmission signal in accumulator, delayed by period dependent on accumulator content |
07/24/1991 | EP0437945A1 Clamp circuitry |
07/24/1991 | EP0437605A1 Bi-cmos clock driver with reduced crossover current |
07/24/1991 | EP0437425A1 Process and device for monitoring failures of timing signals |
07/24/1991 | CN1013331B Voltage level conversion circuit |
07/20/1991 | CA2031082A1 Sync tip clamp circuitry |
07/18/1991 | DE4000893A1 Multichannel appts. for electro-simulation - provides several current circuits for patient with electrodes applying pulse signals |
07/18/1991 | DE3943306C1 Sense amplifier for complex logic gates - has drain-source path of FET connected to potential source and base of bipolar transistor |
07/17/1991 | EP0437410A1 Device for doubling/halving the rate of a serial bitstream |
07/17/1991 | EP0436771A1 Unbalanced transmitter and receiver for bipolar signals |
07/16/1991 | US5033067 Variable shift register |
07/16/1991 | US5033066 Event tagging time delay |
07/16/1991 | US5032744 High speed comparator with offset cancellation |
07/16/1991 | US5032743 Skew clamp |
07/16/1991 | US5032740 Voltage level conversion of a clock signal |
07/16/1991 | CA1286365C High speed hybrid digital driver |
07/11/1991 | WO1991010176A1 Device for preventing erroneous operation when the clock is interrupted in a controller |
07/10/1991 | EP0436000A1 Multiple clock synthesizer |
07/10/1991 | EP0181379B1 Pulse detector for missing or extra pulses |
07/09/1991 | US5030895 Field emitter array comparator |
07/09/1991 | US5030856 Receiver and level converter circuit with dual feedback |
07/09/1991 | US5030853 High speed logic and memory family using ring segment buffer |
07/09/1991 | US5030850 Off-set stabilizer for comparator output |
07/03/1991 | EP0435148A1 A low-hysteresis regenerative comparator |