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)
02/1992
02/19/1992EP0471390A2 A frequency divider circuit
02/18/1992US5090033 Electrical counter having plural unit value registers
02/18/1992US5089957 Ram based events counter apparatus and method
02/04/1992US5086441 Frequency divider circuit
01/1992
01/08/1992EP0464592A2 Data detector
12/1991
12/04/1991EP0459248A1 Modular gray code counter
11/1991
11/28/1991WO1991018395A1 Bidimensional array of counter circuits
11/21/1991DE4015604A1 Zweidimensionales schaltungsarray Two-dimensional array circuit
11/06/1991EP0454882A1 Digital counter circuit
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
10/22/1991US5060244 Method and apparatus for indicating when the total in a counter reaches a given number
10/22/1991US5060243 Ripple counter with reverse-propagated zero detection
10/08/1991US5056040 Electric balance with digital display
09/1991
09/04/1991EP0444911A1 Integrated high speed synchronous counter with asynchronous read-out
09/03/1991US5046029 Electronic odo/trip meter for automobiles
09/03/1991US5045854 Integrated high speed synchronous counter with asynchronous read-out
08/1991
08/08/1991WO1991011726A1 Binary counter with resolution doubling
08/06/1991US5038355 Matrix of multiplexed synchronized counters for an integrated circuit
07/1991
07/02/1991US5029191 Binary counter with resolution doubling
06/1991
06/19/1991CN2079389U Pulse signal digital display instrument
06/04/1991US5021994 Look-ahead flag generator
05/1991
05/29/1991DE4035470A1 Processing analog signal in combine harvester - processing steep edge of signal to TTL compatible one, with signal counting
05/22/1991EP0428047A2 Ram based event counter method and apparatus
05/08/1991EP0139770B1 Electronic odometer
04/1991
04/24/1991EP0424129A2 Electrical counters
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
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
03/07/1991DE3920948A1 Electronic pulse group generator - uses last but one pulse to trigger internally generated last pulse whose interval is at least equal to clock pulses
02/1991
02/26/1991US4996699 Digitally settable frequency divider, especially for a frequency synthesizer
02/12/1991US4993051 Johnson counter circuit with invalid counter position detection and correction mechanism
02/05/1991US4991186 High frequency clock pulse counter
01/1991
01/16/1991EP0408234A2 A non-volatile counter
01/16/1991EP0228433B1 Frequency dividing arrangements
01/15/1991CA1279108C Look ahead terminal counter
01/15/1991CA1279107C Multi-mode counter network
12/1990
12/19/1990EP0403047A2 A frequency divider circuit
12/18/1990US4979193 Method and apparatus for testing a binary counter
12/05/1990EP0400790A1 Electronic odometer
12/04/1990US4975931 High speed programmable divider
11/1990
11/22/1990DE3916226A1 Modulo-10 pulse counter with arbitrary number of decades - retards either all counter flip=flops in each decade, or last decades circuits only
11/22/1990DE3915935A1 Electronic pulse counter with simple flip=flops - delays individual flip=flop resetting, or energises resetting of last partial circuit only
11/21/1990CN2066196U Jss series second-flicker digit-time relay
11/14/1990EP0396673A1 High speed digital programmable frequency divider
10/1990
10/31/1990EP0395209A2 Method and apparatus for testing a binary counter
10/24/1990EP0394192A2 Curable mixture based on cycloaliphatic epoxy resins
10/17/1990EP0392421A1 Multiplexed synchronous counter matrix for integrated circuit
09/1990
09/18/1990US4958362 Clock signal generating circuit
08/1990
08/30/1990DE4005462A1 Non-volatile memory counting method - changing state of memory locations in serial fashion in response to inputs so locations count twice preset number of inputs
08/22/1990EP0281550B1 Circuit for adding, storing and reproduction of electrical counting pulses
08/21/1990US4951303 High speed digital programmable frequency divider
08/07/1990US4947410 Method and apparatus for counting with a nonvolatile memory
07/1990
07/04/1990EP0376718A1 A semiconductor device
06/1990
06/28/1990WO1990007232A1 High speed programmable divider
06/26/1990US4937782 Counter control method
06/21/1990DE3842874A1 Signal conversion unit
05/1990
05/30/1990EP0370924A1 High frequency clock pulse counter
05/17/1990WO1990005413A1 High speed digital programmable frequency divider
05/02/1990EP0366495A2 Numerical value setting device
03/1990
03/27/1990US4912734 High resolution event occurrance time counter
02/1990
02/07/1990EP0353399A2 Digitally adjustable frequency-dividing arrangement, especially for frequency synthesizers
01/1990
01/31/1990EP0190141B1 Hourmeter apparatus and method
01/23/1990US4896323 Parity-checked clock generator system
01/10/1990EP0203096B1 Self-correcting frequency dividers
01/03/1990EP0349236A2 Reload-timer/counter circuit
01/02/1990US4891825 Fully synchronized programmable counter with a near 50% duty cycle output signal
12/1989
12/27/1989EP0348112A2 Electronic counter tester
12/13/1989EP0345893A1 Integrated semiconductor circuit comprising a frequency divider circuit dividing by two
11/1989
11/21/1989US4882740 Frequency counter for counting a frequency and partly varied frequencies of a signal in real time
11/14/1989US4881248 Counter circuit provided with means for reading out counted data by read-command signal applied asynchronously with clock signals to be counted
09/1989
09/26/1989US4870664 Continuous counting device
09/14/1989DE3740452A1 Flip flop resetting drive
08/1989
08/29/1989US4862515 Frequency dividing arrangements
08/23/1989EP0329242A1 Counter circuit with error detection, and circuit comprising such a counter circuit
08/22/1989US4860325 Counter tester
08/15/1989US4858168 Carry look-ahead technique having a reduced number of logic levels
08/08/1989US4855895 Frequency dividing apparatus for high frequency
08/02/1989EP0326216A2 Counter with glitchless terminal count indication
06/1989
06/13/1989US4839910 Counter with glitchless terminal count indication
06/13/1989US4839909 Register access decade counting technique
06/08/1989DE3739818A1 Flip=flop circuit resetting control - has at least part of flip=flops supplied by required operational voltage over two separate lines
05/1989
05/09/1989CA1253925A1 Self-correcting frequency dividers
04/1989
04/26/1989EP0313178A2 Circuit and method for performing clock division and clock synchronization
04/04/1989CA1252157A1 Phase adjustment system
03/1989
03/16/1989DE3828871A1 Nicht fluechtige, elektronische zaehler Non-volatile, electronic count
02/1989
02/21/1989US4807266 Circuit and method for performing equal duty cycle odd value clock division and clock synchronization
02/21/1989US4807264 Circuit arrangement for the addition, storage and reproduction of electric counting pulses
02/01/1989EP0301382A2 Continuous counting device
01/1989
01/31/1989US4801875 Integrated circuit with frequency dividing test function
12/1988
12/27/1988US4794628 Counter circuit with mislatching prevention
12/14/1988EP0294505A1 Clock generator system
11/1988
11/23/1988EP0292002A2 Frequency dividing apparatus for high frequency
09/1988
09/28/1988EP0284498A1 Frequency counter in particular for counting partly varying frequencies in real time
09/27/1988US4774544 Counter apparatus for an image forming apparatus for counting and managing the number of image forming operations
09/14/1988EP0281550A1 Circuit for adding, storing and reproduction of electrical counting pulses.
08/1988
08/30/1988US4768210 Method and apparatus for failsafe storage and reading of a digital counter in case of power interruption
08/02/1988US4761801 Look ahead terminal counter
07/1988
07/19/1988US4759043 CMOS binary counter
07/19/1988US4758737 Clock generator circuit
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