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Class 377/49 - Counter includes circuit for performing an arithmetic function


Subclass of Class 377 - Electrical pulse counters, pulse dividers, or shift registers: circuits and systems
Definition: Subject matter where a counter includes a circuit for performing
No. of patents: 138
Last issue date: 04/29/2008


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NumberTitleIssue Date
7365654Absolute angle detection apparatus
In an absolute angle detection apparatus, sectors are obtained by dividing 360° by an even number, each sector having combinations of first and second code lines. The first code lines are Gray codes including third code lines that do not appear the same even when a...
04/29/2008
7336756Reprogrammable bi-directional signal converter
A signal converter is comprised of a plurality of counters (“macro-counters”). In turn, each of the macro-counters is comprised of a plurality of single-bit counters (“micro-counters”) that are adapted to receive configuration data in the form of bit fields....
02/26/2008
7256713Absolute angle detecting device
An absolute angle detecting device is provided. The absolute angle detecting device is composed of a first detecting element group that outputs a Gray code string for angle detection that detects a rotating angle in one sector of the multi-rotation body at required ...
08/14/2007
7210078Error bit method and circuitry for oscillation-based characterization
A method for evaluating an output of a sequential circuit 2 by storing a series of output pulses from the sequential circuit 2 and determining whether the output pulses 4 toggled as desired. Also a circuit 1 for evaluating an output 4
04/24/2007
7203265Synchronous counting circuit
A M by N bit synchronous counter for use in advanced applications is provided. The M by N bit synchronous counter comprises an M by N register configured to receive and store data corresponding to at least one word integrated with a N bit counter configured to seque...
04/10/2007
7199409Device for subtracting or adding charge in a charge-coupled device
The present invention provides an apparatus for adding or subtracting an amount charge to or from a charge packet in a CCD as the packet traverses the CCD. The apparatus uses a “wire transfer” device structure to perform the addition or subtraction of charge dur...
04/03/2007
7113886Circuit and method for distributing events in an event stream
A circuit and related method for distributing events in an event stream (i.e., an electronic signal having a plurality of rising edge transitions and falling edge transitions). The circuit distributes the events in a primary event stream across multiple secondary ev...
09/26/2006
7109762Frequency-dividing circuit arrangement and phase locked loop employing such circuit arrangement
A frequency-dividing circuit arrangement is disclosed that includes a divider chain having a plurality of frequency divider stages. The frequency dividers can be changed over between the division ratios 2 and 3. At least that frequency divider that is arranged on th...
09/19/2006
7047432Method and system for synchronizing output from differently timed circuits
Synchronizing output from timed circuits includes receiving a first clock signal having a first frequency at a first timed circuit. A first sequence of first circuit values is retrieved from the first timed circuit, and first count values are periodically inserted i...
05/16/2006
7035369Apparatus and method for a programmable clock generator
A gateless digital circuit and method for generating a second clock with a frequency of N/M of the frequency of a first clock, wherein N and M are integers, N≦M/2. The gateless digital circuit having a modulo M function, a register and a adder operable connected t...
04/25/2006
7006702Image coding device
The image coding device comprises data adding means for adding specific data to input image data at the end of image data, and arithmetic coding unit not issuing remaining output code of code register after coding of final input data. In this constitution, increase ...
02/28/2006
7005898Programmable divider with built-in programmable delay chain for high-speed/low power application
A programmable divider includes a synchronous counter configured to process an input clock signal and produce first output signals in response the input clock signal. A number of logic devices are coupled to the synchronous counter and configurable to receive the fi...
02/28/2006
6947077Fast and accurate adjustment of gain and exposure time for image sensors
A proportional counting circuit generates count values for use in variably adjusting gain and exposure time of an image sensor array. The count values are adjusted in proportion to the current count value. This technique allows for fast and accurate adjustment of ga...
09/20/2005
6937290Method and apparatus using the Bresenham algorithm to synthesize a composite SYNC signal
A method and circuit for generating a train of synthesized sync pulses in accordance with the Bresenham algorithm in response to an input clock having frequency Fi, such that the leading edges of the pulses occur at least nearly periodically, with time-av...
08/30/2005
6922456Counter system and method
A system and method for performing counting operations for a plurality of components is disclosed. A memory stores a plurality of counts from different components. The memory is coupled to a counter and the plurality of counts are accessible to the adder for adding ...
07/26/2005
6914463Frequency output generation through alternating between selected frequencies
Techniques are described for producing a signal having a desired frequency. The desired frequency can be produced to a very high precision, even when the desired frequency is very high. The techniques, in one example, represent an intermediate, otherwise non-availab...
07/05/2005
6909767Logic circuit
Circuit for selecting a second set of binary inputs according to the number of high input signals applied to a first input set. A first subcircuit has the first input set, logic generating control output signals, each control output signal represents whether the fir...
06/21/2005
6907098Gray code counter
A Gray code counter includes a holding circuit, first and second conversin circuit and an operation circuit. The holding circuit stores gray code signals and outputs the stored gray code signals in response to a clock signal. The first conversion circuit receives th...
06/14/2005
6757352Real time clock with a power saving counter for embedded systems
A real time clock counter includes a serially connected plurality of register units, each register unit having a bit register for storing clock data, a half adder for incrementing the clock data stored in the bit register, and an activation circuit for activating th...
06/29/2004
6695475Temperature sensing circuit and method
A method and circuit are disclosed for measuring temperature. An exemplary embodiment of the present invention includes a first oscillator circuit that generates a first signal having a frequency that is dependent upon a sensed temperature. Difference cir...
02/24/2004
6466890Device for detecting rotational position deviation
The present invention relates to a detecting device of rotational position deviation, which detects deviation of the rotational position of machine axes driven by electric motors with pulse signals outputted from pulse generators, which are attached to at...
10/15/2002
6208705Electronic counter for a non-volatile memory device integrated on a semiconductor
An electronic counter for a semconductor-integrated non-volatile memory device includes a single count cell connected with its output to at least one storage element The count cell comprises a summing block of the half-adder type and a master portion of a...
03/27/2001
6175607Pulse counter
The pulse counter counts high speed pulses and detects an absolute phase difference among a plurality of electric motors. Pulse outputs 5 and 6 from pulse generators 3 and 4 are inputted into integrating counters 15 and 16 through pulse converters 9 and 11 and...
01/16/2001
6144714Programmable fractional frequency digital frequency synthesizer for synchronous residual time stamp service clock regenerator phase locked loop
A service clock regenerator regenerates a local clock from time stamps of a remote clock transmitted over a network by determining the slope of (or difference between current and previous) time stamps of the remote clock and the slope of time stamps of th...
11/07/2000
6094100PLL synthesizer apparatus
Disclosed herein is a fractional N-type PLL frequency synthesizer apparatus. A fractional N-type control circuit employed therein for varying N values for each reference cycle is constructed of a combination of a frequency divider (comprising D flip-flops...
07/25/2000
6076096Binary rate multiplier
A rate multiplier for rate multiplying a pulse train comprising: an accumulator, a multiplexer for selecting one of a first and a second number of different signs to feed to the accumulator, and a pulse train gate for providing or blocking the pulse train...
06/13/2000
6021171Multiplexing decoder/counter circuit for monitoring quadrature position encoders
A multiplexing decoder/counter circuit for monitoring quadrature position encoders. The system includes an edge detector, a position counter, a position latch, a capture latch, and compare management means. Addressable memory blocks are used throughout th...
02/01/2000
5940467Counting circuit
Quality requirements on a counter may set a limit to the highest frequency that can be applied to the counter. This will also limit the resolution. A counter is provided including a generator for generating, in response to a first clock frequency, M secon...
08/17/1999
5899570Time-based temperature sensor system and method therefor
A time-based digital temperature sensing system has a first oscillator which is temperature sensitive. The first oscillator has a temperature coefficient which allows the first oscillator to generate an output signal which varies linearly as a function of...
05/04/1999
5892405PLL synthesizer apparatus
Disclosed herein is a fractional N-type PLL frequency synthesizer apparatus. A fractional N-type control circuit employed therein for varying N values for each reference cycle is constructed of a combination of a frequency divider (comprising D flip-flops...
04/06/1999
5638418Temperature detector systems and methods
A temperature detector comprises temperature sensing circuitry calibration circuitry, and power regular circuitry. The temperature sensing circuitry has an output that varies with a temperature to create a temperature variation. The calibration circuitry ...
06/10/1997
5617458Clock divider
The invention discloses a method and an apparatus for implementing an L phase clock in conjuction with L counters, where L is an integer, to count at a frequency scalable by L....
04/01/1997
5615241Programmable rate generator
A rate generator for use in a video server or other computer system requiring the generation of multiple timing signals from a single fixed frequency clock signal is disclosed. The rate generator stores a count value, a subtrahend value and a preload valu...
03/25/1997
5513235Integrated circuit thermometer
An integrated circuit temperature detector (thermometer) uses a temperature dependent oscillator to count up to a fixed number and thereby generate a time interval indicative of the temperature (a temperature-to-time converter). The time-to-number convert...
04/30/1996
5481582Rapidly resettable counting device
A rapidly resettable counting device is described, which is particularly suitable for use in signal processors and which comprises a counter (1) receiving a clock signal at an input and supplying its output signal to a first register (2) clocked by the cl...
01/02/1996
5469483Timer with a compensation value to increment or decrement a count value of a counter
A timer has a function of compensation calculation and includes a compensation value register 1 for holding a compensation value and an arithmetic unit 2 which adds or subtracts a compensation value "଱" held in the compensation value register 1 and ...
11/21/1995
5438601Reference clock frequency divider
A reference clock frequency divider feasible for a motor drive IC (Integrated Circuit), optical disk drive, hard disk drive or similar apparatus. The frequency divider is capable of setting not only integral frequency division ratios but also decimal freq...
08/01/1995
5422923Programmable time-interval generator
A programmable time-intervals generator comprising first and second digital counters, a memory, a digital divider and a digital adder. On the occurrence of a first event, the first counter starts counting, and on the occurrence of a second event, only the...
06/06/1995
5394450Circuit for performing arithmetic operations
A race-free arithmetic operation circuit is disclosed. The circuit comprises a register file array, an arithmetic logic unit (ALU), and apparatus for controlling the input and/or the output signal of the ALU. The apparatus for controlling can be two level...
02/28/1995
5390223Divider circuit structure
A divider circuit provides an output signal having a frequency which is equal to the frequency of an input signal divided by an odd integer. This is achieved by feeding back the output from a binary counter through an AND gate, delay flip-flop and an OR g...
02/14/1995
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