Patents
Sitemap › H03 - Basic electronic circuitry › H03K - Pulse technique › H03K 23 - Pulse counters comprising counting chains; Frequency dividers comprising counting chains
Patents for H03K 23 - Pulse counters comprising counting chains; Frequency dividers comprising counting chains (2,815)
12/1992
12/29/1992US5175753 Counter cell including a latch circuit, control circuit and a pull-up circuit
12/29/1992US5175752 Frequency divider with reduced clock skew
12/15/1992US5172400 Frequency divider employing multiple stages of master/slave flip-flops
12/09/1992EP0517335A1 Frequency-divider circuit
11/1992
11/24/1992US5167031 Variable frequency clock pulse generator for microcomputer
11/17/1992US5164968 Nine bit Gray code generator
11/12/1992DE4114747A1 Special forwards-backwards impulse meter - used as decimal point shift register with only one output having H-potential and has impulses reversing circuit controlled by four impulse conductors
11/11/1992EP0512048A1 High speed frequency divider circuit
11/10/1992US5163074 Dynamic frequency divider circuit with capacitor in loop to achieve fifty percent duty cycle output
10/1992
10/29/1992DE4113102A1 Electronic programming circuit for number of pulses - uses electronic up=down counter as basic circuit
10/20/1992US5157701 High speed counter circuit
10/07/1992EP0507441A2 Counter circuit
09/1992
09/30/1992EP0273954B1 An electronic counter
09/15/1992US5148050 Variable frequency-dividing circuit
09/08/1992US5146479 Up/down counter for counting binary data stored in flip flops
09/02/1992CN1064155A Synchronous non-seam counter of counting signals
08/1992
08/27/1992DE4041056A1 Electronic counter circuit with zero quiescent current - uses C-FET flip=flops to circuit passive state current flow esp. for modulo counters
08/25/1992US5142651 Uninterrupted, enhanced-rate, event-time recorder with mixed-speed counter modules
08/19/1992EP0168426B1 Multiple frequency digital phase locked loop
08/11/1992US5138707 Method of operating a timer in a digital data processing system
07/1992
07/21/1992US5132642 PLL using asynchronously resettable divider to reduce lock time
07/09/1992WO1992011589A1 Programmable divider up/down counter with hysteresis
06/1992
06/30/1992US5127036 Fifty percent duty cycle divided-by-m counter
06/24/1992EP0491064A1 Method and apparatus for dividing the frequency of an alternating voltage by a non integer
06/18/1992CA2057606A1 Method and arrangement for dividing the frequency of an alternating voltage with a non-whole-numbered division factor
06/17/1992EP0490178A1 Lock detector for a digital phase locked loop
06/17/1992DE4039706A1 Modulo-10 counter circuit - uses successive flip=flop circuits each with complementary transistor pair
06/16/1992CA1303688C Frequency-dividing circuit
06/09/1992US5121417 Count-locked loop timing generator
06/03/1992EP0488505A1 Frequency-divider circuit
06/03/1992EP0488034A2 Sequential logic circuit having state hold circuits
05/1992
05/26/1992CA1301858C Fast library element gray code generators without feedback and feedforward networks
05/13/1992CN1016659B High speed predcaler
05/05/1992US5111489 Frequency-dividing circuit
04/1992
04/15/1992EP0480681A1 Semiconductor integrated circuit
04/08/1992EP0479265A2 Controllable frequency generator
03/1992
03/26/1992DE4031532C1 Variable frequency generator e.g. for motor control converter - has gate circuit between pulse generating oscillator and frequency divider
03/18/1992EP0475862A1 High speed counter/divider and its application in a pulse swallow type counter
03/17/1992US5097491 Modular gray code counter
03/17/1992CA1297544C Method of and apparatus for digitally setting a control frequency
03/11/1992EP0474616A2 Dual modulus counter circuit
03/04/1992EP0473251A1 Frequency divider and pulse signal former
02/1992
02/26/1992EP0472137A1 Fractional frequency dividing timing clock and control thereof
02/19/1992EP0471390A2 A frequency divider circuit
02/05/1992EP0469738A2 Low noise frequency divider architecture
02/04/1992US5086441 Frequency divider circuit
01/1992
01/28/1992US5084907 Two-modulus variable frequency-divider circuit
01/23/1992DE4022993A1 Electronic quadruple circular pulse circuit - has only 2 double flip=flops as main components
01/08/1992EP0464592A2 Data detector
12/1991
12/31/1991US5077764 Frequency dividing circuit capable of varying dividing ratio
12/04/1991EP0459248A1 Modular gray code counter
11/1991
11/19/1991US5066927 Dual modulus counter for use in a phase locked loop
11/13/1991EP0456193A2 Image pickup apparatus and counter circuit used therein
11/12/1991WO1991018449A1 Scaler for synchronous digital clock
11/12/1991US5065415 Programmable frequency divider
11/06/1991EP0454882A1 Digital counter circuit
11/06/1991EP0454790A1 High speed prescaler
11/05/1991US5063579 Scaler for synchronous digital clock
10/1991
10/29/1991US5062128 Timer control with selectable frequency divider
10/29/1991US5062126 High speed synchronous counter system and process with look-ahead carry generating circuit
10/22/1991US5060243 Ripple counter with reverse-propagated zero detection
10/22/1991CA1291267C Counter
10/22/1991CA1291224C Logic circuit using resonant-tunneling transistor
10/02/1991CN1055091A Method and circuit for controlling frequency of electronic inverter
09/1991
09/18/1991EP0446527A2 Method and circuit for controlling the frequency of an electronic inverter
09/13/1991CA2036145A1 Method and circuit for controlling the frequency of an electronic inverter
09/11/1991EP0445979A2 Fractional frequency divider for providing a symmetrical output signal
09/10/1991US5048065 Method and circuit for controlling the frequency of an electronic inverter
09/10/1991CA1288828C Clock pulse generator for microcomputer
09/04/1991EP0444911A1 Integrated high speed synchronous counter with asynchronous read-out
09/03/1991US5045854 Integrated high speed synchronous counter with asynchronous read-out
09/03/1991US5045811 Tuned ring oscillator
08/1991
08/29/1991DE4016951C1 Dividing frequency of input signal - using counters for positive and negative flanks of pulses and decoding signals from results
08/14/1991DE4000587A1 Electronic counter - uses passive outputs of flip=flops instead of negation of active output for second input to each AND=gate of main circuit
08/13/1991US5040197 Fractional frequency divider for providing a symmetrical output signal
08/08/1991WO1991011860A1 High speed frequency divider circuit
08/08/1991WO1991011726A1 Binary counter with resolution doubling
08/07/1991EP0440389A2 Tuned ring oscillator and clock generation circuit provided therewith
08/07/1991EP0191781B1 Field presettable electronic usemeter
07/1991
07/02/1991US5029191 Binary counter with resolution doubling
06/1991
06/11/1991US5023893 Two phase non-overlapping clock counter circuit to be used in an integrated circuit
06/04/1991US5022059 Counter circuit presettable with a plurality of count values
05/1991
05/28/1991US5020082 Asynchronous counter
05/22/1991EP0427729A1 Gray counter without feedback
04/1991
04/30/1991US5012497 High speed frequency divider circuit
04/30/1991US5012130 Small area and low current drain frequency divider cell for integrated circuits
04/18/1991DE4004397C1 Self-adjusting counter having stages as shift register with feedback - returning signals to input counting stage only upon appearance of count demand
04/16/1991CA1283175C Circuit and method for performing equal duty cycle odd value clock division and clock synchronization
04/03/1991EP0419823A1 Digital time base generator with adjustable delay between two outputs
03/1991
03/26/1991US5003566 Hyperfrequency circuit comprising a dynamic divide-by-two frequency divider circuit employing single interrupt FET, buffer and inverter in a loop
03/05/1991CA1281087C2 Multiple frequency digital phase locked loop
03/05/1991CA1281086C2 Multiple frequency digital phase locked loop
03/05/1991CA1281085C2 Multiple frequency digital phase locked loop
02/1991
02/27/1991EP0414426A1 Superconducting analog-to-digital converter with grounded four-junction squid bidirectional counter
02/26/1991US4996699 Digitally settable frequency divider, especially for a frequency synthesizer
02/12/1991US4992680 Programmable logic device having a plurality of programmable logic arrays arranged in a mosaic layout together with a plurality of interminglingly arranged interfacing blocks
02/05/1991US4991188 Digital frequency divider
02/05/1991US4991187 High speed prescaler
02/05/1991US4991186 High frequency clock pulse counter
01/1991
01/22/1991WO1991002410A1 High speed prescaler
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