Patents
Sitemap › H03 - Basic electronic circuitry › H03K - Pulse technique › H03K 21 - Details of pulse counters or frequency dividers
Patents for H03K 21 - Details of pulse counters or frequency dividers (1,950)
11/1999
11/09/1999US5982840 Swallow counter with modulus signal output control
11/03/1999EP0953229A1 Method, system, and device for accumulating data and maintaining the accumulated data
10/1999
10/20/1999EP0829141A4 Method , apparatus for electronic encoding and decoding
10/12/1999US5966421 Emulation of an m bit counter driven by a desired clock frequency given a central clock frequency
10/12/1999US5966420 Counter circuit for embodying linear burst sequence
10/05/1999US5963068 Fast start-up processor clock generation method and system
09/1999
09/30/1999DE19911945A1 Clock frequency divider for desired clock frequency generation
09/21/1999US5956502 Method and circuit for producing high-speed counts
08/1999
08/31/1999US5946369 High-speed binary synchronous counter with precomputation of carry-independent terms
08/17/1999US5940467 Counting circuit
08/17/1999US5939919 Clock signal distribution method for reducing active power dissipation
08/11/1999CN1225526A Preset counter
08/10/1999US5937024 Counter for counting high frequency
07/1999
07/27/1999US5930186 Method and apparatus for testing counter and serial access memory
07/20/1999US5926520 Shift register functioning in both latch mode and counter mode and flash memory employing same
07/13/1999US5923718 Binary counter reading circuit
06/1999
06/22/1999US5914996 Multiple clock frequency divider with fifty percent duty cycle output
06/03/1999WO1999027650A1 Method, system, and device for accumulating data and maintaining the accumulated data
05/1999
05/11/1999CA2182356C Time interval measurement system and a method applied therein
04/1999
04/27/1999US5898742 Optimal design method and apparatus for synchronous digital circuits by retiming through selective flipflop positioning and electronic circuit configuration produced by executing the method
04/14/1999EP0909034A2 Counting circuit with rewritable non-volatile memory and counting method
03/1999
03/23/1999US5887046 Method, system, and device for accumulating data and maintaining the accumulated data
03/18/1999WO1999013578A1 Non-linear counting device
03/18/1999WO1999013474A1 Method for recording a binary word using electrically erasable and programmable memory cells
03/11/1999DE19739768A1 Verfahren und Einrichtung zum Erzeugen einer Folge von mehrstelligen Binärcodes Method and apparatus for generating a sequence of multi-digit binary code
03/02/1999US5878101 Swallow counter with modulus signal output control
02/1999
02/03/1999EP0895358A2 Fast start-up processor clock generation method and system
02/02/1999US5867046 Multi-phase clock generator circuit
01/1999
01/12/1999US5859890 Dual modulus prescaler
12/1998
12/02/1998EP0880825A1 Counting circuit
10/1998
10/21/1998CN1196610A Dual modulus prescaler
10/15/1998DE19814178A1 Highly accurate timepiece or clock
09/1998
09/11/1998WO1998039845A2 Method and circuit for producing high-speed counts
09/08/1998US5805532 Time interval measurement system and method applied therein
08/1998
08/12/1998EP0858169A2 Mobile communication apparatus for intermittently receiving a broadcasting signal at a corrected reception timing
07/1998
07/14/1998CA2092845C Trigger signal generating circuit
06/1998
06/23/1998US5770952 Timer that provides both surveying and counting functions
06/16/1998US5767720 Clock signal supplying circuit
05/1998
05/19/1998US5754615 Fast programmable divider
05/13/1998CN1181662A Method and apparatus for testing counter and serial access memory
05/06/1998EP0840329A1 Method and apparatus for testing counter and serial access memory containing it
04/1998
04/01/1998EP0833129A2 High security counter
03/1998
03/18/1998EP0829963A2 Clocking scheme
03/18/1998EP0829141A1 Method , apparatus for electronic encoding and decoding
03/17/1998US5729170 Input buffer circuit for a frequency divider
03/05/1998DE19736898A1 Multiple phase clock generator
03/04/1998EP0827081A1 Testable sequential counter
03/04/1998EP0827051A2 Time interval measurement system and method applied therein
03/04/1998CN1175177A Calling unit counter
03/04/1998CN1175129A Read-out device for binary counter
01/1998
01/28/1998EP0821485A2 Call-unit count device
01/06/1998US5706322 Precision time of day counter
12/1997
12/16/1997US5699398 For counting write signals
12/02/1997US5694444 Testable high count counter
11/1997
11/19/1997CN2267840Y Chinese-chess chessboard capable of automatically countering rounds and timing
11/18/1997US5689539 Time interval measurement system and a method applied therein
11/11/1997US5687135 Count unit for nonvolatile memories
10/1997
10/07/1997US5675622 Method and apparatus for electronic encoding and decoding
09/1997
09/12/1997WO1997033373A1 Method , apparatus for electronic encoding and decoding
08/1997
08/21/1997WO1997030518A1 Counting circuit
08/21/1997CA2245914A1 Counting circuit
08/07/1997WO1997028605A1 Shared counter
08/07/1997DE19700017A1 Swallow counter for PLL frequency synthesiser circuit providing prescaler with module signal
07/1997
07/23/1997EP0785624A1 Windowed clock generation
04/1997
04/23/1997CN1148222A Synchronous counter and method for propagating carry of same
04/09/1997EP0767423A1 Look up table implementation of fast carry for adders and counters
04/09/1997EP0767422A1 Look up table implementation of fast carry for adders and counters
04/09/1997EP0767421A1 Look up table implementation of fast carry for adders and counters
04/08/1997US5619509 Apparatus and methods for testing transmission equipment and a self-test method
04/08/1997US5619437 Parallel data counter circuit
03/1997
03/25/1997CA2017298C Electronic odometer
02/1997
02/05/1997EP0757440A2 A time interval measurement system and a method applied therein
01/1997
01/14/1997US5594703 End-of-count detecting device for nonvolatile memories
12/1996
12/04/1996EP0746109A1 Fast programmable divider
10/1996
10/30/1996EP0740420A2 N+1 Frequency divider counter and method therefor
10/01/1996US5561674 Synchronous counter and method for propagation carry of the same
09/1996
09/25/1996EP0598860B1 High frequency, low power, cmos circuit
07/1996
07/30/1996US5541549 Transfer gate circuit and dynamic divider circuit using the same
06/1996
06/11/1996US5526391 N+1 frequency divider counter and method therefor
06/11/1996US5526390 Decoded counter with error check and self-correction
06/04/1996US5524037 Circuit configuration for generating even-numbered duty factors
06/04/1996US5524035 Symmetric clock system for a data processing system including dynamically switchable frequency divider
05/1996
05/28/1996US5521952 Pulse counter circuit and pulse signal changeover circuit therefor
02/1996
02/22/1996WO1996005657A1 Electronic counter device
01/1996
01/30/1996US5488645 Clock signal generating device
01/23/1996US5487097 Period measuring device
01/16/1996US5485487 Reconfigurable counter and pulse width modulator (PWM) using same
01/16/1996US5485153 Sinusoidal wave generation apparatus
01/02/1996US5481582 Rapidly resettable counting device
01/02/1996US5481580 Method and apparatus for testing long counters
01/02/1996US5481486 Look up table implementation of fast carry arithmetic and exclusive-OR operations
12/1995
12/26/1995US5479412 Apparatus for testing counter circuit
12/05/1995US5473652 Counter and/or divider arrangement
11/1995
11/30/1995DE19519226A1 Synchronous counter operable in synchronism with system clock
11/21/1995US5469485 Frequency divider
09/1995
09/26/1995US5454018 Counter circuit with automatic reset
09/12/1995US5450460 Non-volatile electronic counter with improved reliability and a substantitally increased maximum count
08/1995
08/15/1995US5442670 Circuit for dividing clock frequency by N.5 where N is an integer
08/08/1995US5440604 Counter malfunction detection using prior, current and predicted parity
08/01/1995US5438600 Odd-number frequency divider and method of constituting the same
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