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7280054 |
Integrated circuit interface that encodes information using at least one input signal sampled at two consecutive edge transitions of a clock signal
An integrated circuit, such as a dynamic RAM, includes a plurality of terminals for coupling to signal lines. One of the signal lines is an input signal line that conveys a clock signal, and at...
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7262718 |
Variable length decoder and variable length decoding method
A variable length decoder comprises: a first storage unit that stores encoded data; a variable length decoding unit; a second storage unit that stores coefficient data; a reverse quantizing unit;...
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6879267 |
Soft-output decoder with computation decision unit
A soft-output decoder that uses a-priori likelihood values to compute metrics while decoding a received data stream also uses the a-priori likelihood values to decide whether or not to compute the...
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6756922 |
Method and system for compression of a set of mostly similar strings allowing fast retrieval
A computer implemented method and system for selecting a string for serving as a reference string for a comparison scheme for compressing a set of strings calculates preliminary compression results...
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6686857 |
Information dependent data transmission for pilot protective relays
Waveform information is transmitted from the ends of a protection zone by first compressing the information using a lossy compression technique such as wavelets and then compressing the lossy...
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6617984 |
16B/20B encoder
A scalable physical coding sublayer (PCS) can be adjusted to provide different combinations of communication channels and data widths. The PCS can use 8B/10B encoders having a disparity input...
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6617986 |
Area efficient, sequential gray code to thermometer code decoder
A Sequential Gray Code to Thermometer Code decoder circuit adapted for area efficient use at each pad of an integrated circuit chip for incrementally adjusting a digitally adjustable resistance for...
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6346906 |
Thermometric-binary code conversion method, conversion circuit therefor and encoder element circuits used therefor
A thermometric-binary code conversion circuit 201 including an input unit 202 that outputs an encode input signal upon receiving a thermometric input signal. An encoder unit 204 outputs an...
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6141122 |
Data compressing method, image data memory, and method and device for expanding compressed data
A data compressing method which can efficiently compress image data containing color data is provided. A compressed data expanding method which can expand the compressed data at high speed is...
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5884269 |
Lossless compression/decompression of digital audio data
An audio signal compression and decompression method and apparatus that provide lossless, realtime performance. The compression/decompression method and apparatus are based on an entropy encoding...
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5684829 |
Digital signal processing coding and decoding system
A signal coding system capable of high efficiency, high quality signal coding is provided. Digital signals represented in the time domain are divided into set time interval data units and output....
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5546575 |
Encoding method for compressing a tabular database by selecting effective compression routines for each field and structure of partitions of equal sized records
A method whereby a database storage structure is created by selectively applying one or more data compaction methods to fields of a database. A specific compaction method is applied to a field if...
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5455578 |
Serial data decoding using state machine with selectable decoding tables
A serial data decoding system is described in which a state machine (FIG. 5) is provided having a plurality of branching hierarchies of states, each branching hierarchy of states corresponding to a...
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5453742 |
High density data compression encode/decode circuit apparatus and method of using in local area networks
Data compression encoding and decoding circuitry which eliminates the need for decode circuitry that looks for the flux reversal points, or peaks, namely the peak detector and the phase-lock-loop...
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5440584 |
Process for transmitting or storing over disturbed channels a digitalized, encoded audio signal composed of a series of information blocks
Digitalized encoded audio signals for transmission over disturbed channels are composed of a series of information blocks made of information units containing various types of information, such as...
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5382955 |
Error tolerant thermometer-to-binary encoder
A thermometer-to-binary encoder includes a set of J input stage encoders E(1) through E(J) and an output encoder D, where J= 2 K is an integer greater than 1. A set of digital input signals each...
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5325398 |
Pulse count mode communication system
A transmitter pulse circuit produces two-phase pulse trains containing a certain number of pulse edges corresponding to an integral number represented by binary parallel bits of a data value to be...
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5293165 |
5B6B coding rule inverse conversion circuit for digital transmission
A circuit for inversely converting the signal of six bits converted by the 5B6B coding rule conversion method in the digital transmission into the original signal of five bits is described. On the...
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5243348 |
Partitioned digital encoder and method for encoding bit groups in parallel
A digital encoder (34) is partitioned into a plurality of rank ordered encoder circuits (36-39) which concurrently encodes least significant bits of an input signal from a first digital format to...
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5036457 |
Bit string compressor with boolean operation processing capability
An apparatus and method, for use with a computer, for converting an uncompressed one-dimensional array of binary bits into a compressed binary bit string and/or for processing a Boolean operation...
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5029305 |
Method and apparatus for error correction in thermometer code arrays
A method and apparatus for correcting errors in a thermometer code data array (32). A parallel A/D converter (22) comprises an array (26) of comparators and an encoder (30). The correction of...
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4954825 |
Self clocking binary data encoding/decoding method
A method for modulating binary data into a format suitable for encoding and decoding information, that employs a non-return-to-zero (NRZ) technique. The modulating method includes: defining within...
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4951049 |
Self clocking binary information encoder
An electrical circuit suitable for encoding binary information, in accordance with a novel modulation method, is provided. The encoder circuit includes: a clock driver; an n-phase counter driven by...
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4910514 |
D/A converter
A single-step digital-to-analog converter includes a multiplicity of individual interconnected sources disposed in a matrix having matrix rows and matrix columns; a decoder apparatus connected to...
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4733220 |
Thermometer-to-adjacent bindary encoder
An encoder circuit converts a thermometer code into an equivalent adjacent binary code wherein only a single bit is changed to minimally increment or decrement the value of the binary code. The...
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4444055 |
Compensating transducer digitizer
A compensating transducer digitizer circuit provides for compensating the digital output of a measuring transducer with the digital output of a compensating transducer through the interaction of...
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4364026 |
Digital-to-analog converter useful in a television receiver
A digital-to-analog converter for use in a television tuning system to convert bits stored in a register to a corresponding tuning voltage includes a counter for generating binary pulse signals...
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4328484 |
Method and apparatus for numerically converting a parallel binary coded number from a first unit system to a second unit system
A method and apparatus are disclosed for converting a parallel binary coded, input number from a first unit system to a second unit system, the two unit systems being related by a known numerical...
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4209773 |
Code converters
A digital-to-analogue converter which uses a technique of two-level quantization in order to generate a pulse density code signal which yields the analogue signal when filtered. Standard digital...
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4109110 |
Digital-to-analog converter
The sample rate of the digital input is increased to a point where by reducing the number of bits per sample the final digital-to-analog conversion can be accomplished in a rate multiplier.
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4000363 |
Arrangement for the production of selection pulses in teleprinters
A teleprinting apparatus which eliminates a dial switch for connection to a remote subscriber and which substitutes a circuit arrangement which utilizes the keyboard through a coding system to...
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3898647 |
Data transmission by division of digital data into microwords with binary equivalents
Method and means for processing data in the transmission and/or transfer of the data itself, making use of a modulation system acting on the number of elements (microwords) into which the original...
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3862407 |
DECIMAL TO BINARY CONVERTER
A decimal to binary converter which sequentially generates a train of pul equal in number to each digit, of the decimal number to be converted, multiplied by its respective power of 10. These...
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3801803 |
ELECTRONIC CONVERSION SYSTEM
Apparatus for converting displacement command pulses in an N/C system from Metric to English systems of measurement. The apparatus is entirely external to the N/C machine and employs relatively...
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3774197 |
CALCULATING MACHINES
A calculating machine is disclosed employing a circuit for repetitively generating a pulse train representing a depressed function or digit key. The generating circuit has a continuously driven...
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3764787 |
METHOD AND APPARATUS FOR PULSE DISTRIBUTION WITH VARIABLE TIME INTERVAL FOR PULSE TRAIN GENERATION
A method for pulse distribution includes the detection of the highest bit position in a plural bit input. A pulse sending interval corresponding to the highest input bit position is determined, and...
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3705423 |
ARRANGEMENT FOR TRANSLATING A TRAIN OF PULSES INTO LOGIC WORDS
A train of pulses divided into different sets of pulses has each set of pulses directed to a different counting and storing arrangement. The counting and storing arrangements are then actuated in...
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3681859 |
ELECTROMECHANICAL BASE CONVERTER
Instructional apparatus for representing numbers in a selected number system, normally other than the decimal system, and for indicating a given number in decimal form as well as the form into...
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3660913 |
METHOD AND APPARATUS FOR TEACHING MATHEMATICS IN DIFFERENT NUMBER SYSTEMS
A method and apparatus for teaching relationships between the calculations in different number bases using a simple computer unit. The unit has a manually operable decimal input dial, manually...
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3602698 |
PULSE COUNT CONVERSION DEVICE USING DECIMAL ADDER-SUBTRACTER
A conversion device for converting a train of electric signal pulses indicative of a given quantity, such as position, into a count of standard units of measure. The conversion device comprises a...
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3597593 |
DATA CONVERSION APPARATUS
Apparatus for periodically varying in response to acceleration-representing signals from a computer the number of pulses held in a store to represent the velocity of a machine tool, and after each...
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3582624 |
METHOD OF AND APPARATUS FOR APPROXIMATELY PROPORTIONAL REDUCTION OF IMPULSE SERIES
A method of and apparatus for producing an output pulse sequence having a pulse number which is approximately proportional to the pulse number of an input pulse sequence. The device is utilized for...
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3548404 |
FREQUENCY CODED DIGITAL RECORDING SYSTEM
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3532860 |
TWO-OUT-OF-FIVE CODED DECIMAL COUNTER
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3529289 |
PULSE CODE CONVERTER APPARATUS
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3521040 |
PULSE SOURCE
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3508247 |
DIGITAL DEVICE
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3466628 |
INFORMATION CONVERTER EMPLOYING A MAGNETIC DOMAIN WALL MEDIUM
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3313922 |
Telemetering signal processing system
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3308453 |
Electrical pulse generator
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