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7240207 Fingerprinting media entities employing fingerprint algorithms and bit-to-bit comparisons  
A system and methods for the creation, management, and distribution of media entity fingerprinting are provided. In connection with a system that convergently merges perceptual and digital signal...
7116663 Multi-field classification using enhanced masked matching  
Methods and apparatus for finding a match between a target bit pattern and multiple filter bit patterns. A filter array is created from the filter bit patterns and at least one intermediate array...
6907045 Method and apparatus for data-path conversion comprising PCM bit robbing signalling  
A method and apparatus for triggering data-path conversion utilizing PCM bit robbing signalling. The method and apparatus permits the pass-through of compressed voice packets over a PCM stream...
6785699 Prefix comparator  
A longest common subprefix of two binary words p 1 and p 2 is identified based on bit strings ip 1 and ip 2 which are extensions of p 1 and p 2 , and binary words n 1 and n 2 that define the...
6745319 Microprocessor with instructions for shuffling and dealing data  
A data processing system is provided with a digital signal processor (DSP) which has a shuffle instruction for shuffling a source operand ( 600 ) and storing the shuffled result in a selected...
6738794 Parallel bit correlator  
A parallel bit correlator for recognizing a predetermined bit pattern including a predefined number m of bits in a stream of data bits including identifying successive sets of m bits in a stream of...
6664967 Apparatus to detect setting of bits in a data structure  
A method and apparatus for detecting bits set in a data structure. A first level encoding stage receives bits for the data structure, groups the bits into a set of bit groups, and encodes the set...
6631466 Parallel string pattern searches in respective ones of array of nanocomputers  
A high-speed parallel pattern searching system is disclosed. The high-speed parallel pattern searching system allows the body of a data packet to be searched for one or more patterns such as a...
6542537 Reduction of CPU burden in monitoring data for escape sequences  
A communication system implements a system for reducing the processing burden associated with detecting an escape sequence in a set of data. The quantity of data contained within the modem's data...
6505220 Method and apparatus for detecting a unique word  
A signal processing apparatus and method and a provision medium arranged to enable detection of a unique pattern in a short time with high accuracy. A value representing a correlation between an...
6373885 Circuit and method for detecting an escape sequence  
A method for selecting the operational mode of a modem is provided. The method determines the number of characters in a data packet directed to a modem when the modem is not in time independent...
6356925 Check digit method and system for detection of transposition errors  
A method and system for obtaining a check digit to identify a given numeric sequence of n digits and to verify the accuracy of subsequent entries of the numeric sequence. First, a numeric sequence...
6243806 Program execution method and apparatus employing data flags for branching determination  
A group of registers 26 consists of a plurality of general-purpose registers R0, R1, . . . . A flag is provided for each of these general-purpose registers. When data to be written to, for...
5948048 Systems, methods and program products for representing a binary word as two binary words having fewer binary ones  
First and second binary words representing a third binary word having a predetermined number of bits are determined in a data processing system by storing a first word the same as the third binary...
5894427 Technique for concurrent detection of bit patterns  
A technique for concurrently detecting a repetitive occurrence of a bit pattern in a bit string. Successive bits of the bit string are separated into bit groupings and the combined bits are...
5864716 Tagged data compression for parallel port interface  
A bi-directional data pipeline for interfacing a memory with a communications port includes a series of four pipeline elements comprising two DMA buffers and first and second holding registers. A...
5831877 Bit searching through 8, 16, or 32 bit operands using a 32 bit data path  
A bit searching method shifts an operand and counts the number of shifts it takes to shift out the value one, thereby identifying the bit position in operand containing the value one. The operand...
5805632 Bit rate doubler for serial data transmission or storage  
The invention doubles the bit rate for a given media bandwidth as compared to, for example, Manchester encoding. It is applicable to serial transmission or storage of digital data. An arbitrary NRZ...
5764708 Device for identifying a predetermined sequence of signals in a modem  
The invention relates to a device for identifying a predetermined sequence of signals arriving on a modem, the sequence having a frequency spectrum of two determined frequencies, the device...
5761521 Processor for character strings of variable length  
A processor for character strings A, B of variable length serves for the fast detection of match, mismatch and comparative difference conditions between them. The character strings, whose lengths...
5748688 Bit-pattern detector  
A bit pattern detector for detecting a bit pattern in a parallel bitstream input includes left and right matching units for detecting bits in the bitstream input that match the bit pattern. The...
5724275 Fast multi-operand bit pattern detection method and circuit  
A process and associated apparatus for performing bit pattern detection, such as leading one detection and leading transition detection for early normalization of the result of an operation on...
5661763 Apparatus and method for detecting programmable length bit pattern in serial digital data stream  
A programmable digital bit pattern detector detects the presence of a variable length, variable content M-bit serial bit pattern that is sequentially repeated in a digital bit stream during some...
5659585 Digital integrator and digital filter of the first order  
A filter uses a digital integrator that establishes the sum, weighted by a coefficient B, of q1-bit input data arriving at a frequency F. The integrator includes a first p-bit shift-right register;...
5646966 Method and apparatus for detecting synchronizing signals by latching successived count values that represent time between received sync pulses for comparison to a predetermined sync pattern of count values  
A synchronization signal detector for detecting synchronization signals or frame synchronization signals recorded on a recording medium includes a binary-valued signal detector for translating RF...
5636369 Fast pattern-detection machine and method  
The invention is a state machine for the detection of a pre-specified pattern of m bits in a stream of bits where the stream of bits is examined in steps, each successive step consisting of the...
5619715 Hardware implementation of string instructions  
A data processor processes data strings from memory where the data strings do not begin or end at a memory boundary. A string is defined in memory by a starting address, a byte count defining the...
5570306 Method and apparatus for recognizing a bit pattern in a string of bits, altering the string of bits, and removing the alteration from the string of bits  
A method and apparatus for recognizing a search pattern in an input string of bits is provided. According to one aspect of the invention, a portion of the string of bits is selected as a currently...
5528526 Arbitrary repeating pattern detector  
An arbitrary repeating pattern detector (ARPD) detects short cycle patterns having a length of N or less, where N is an integer number. The ARPD obtains data symbols from a random number generator....
5526297 Random unique word detection method and apparatus  
Method for randomly detecting a unique word comprising M bits in a predetermined number of segments within a frame containing L bits of data, where M and L are integers greater than one and wherein...
5504749 Apparatus for reading out address information  
An address information reading-out apparatus of an FDDI network system for transmitting a packet composed of a plurality of m-bit symbols includes an m-bit data bus, an n×m-bit data bus, a control...
5465374 Processor for processing data string by byte-by-byte  
A data processor processes data strings from memory where the data strings do not begin or end at a memory boundary. A string is defined in memory by a starting address, a byte count defining the...
5383142 Fast circuit and method for detecting predetermined bit patterns  
A method and processor design for detecting a specified bit pattern based on the contents of one or more registers, each register having a plurality of bits. The invention is well suited for...
5363414 Method for detecting a signal sequence  
A signal vector obtained by synchronous detection of a received signal is sampled by a sampling rate equal to a symbol rate. The sampled signal vector is rotated by a predetermined angle, and a...
5343540 Method for detecting positions of consecutive bits set to predetermined codes  
A first bit length representing the number of bits set to a predetermined code is found, which occur consecutively starting with the least significant bit of a first word among a plurality of words...
5311456 Arrangement for finding a group of contiguous channels in a channel group  
In modern telecommunications networks, a 64 kilobit/second channel is frequently used for transmitting data. Sometimes, there is a requirement for transmitting data at a rate that is a multiple of...
5282194 Interactive protocol analysis system  
A method and apparatus for analyzing a bit stream having an unknown format that is conveyed through a communications network. The method includes the steps of: (a) storing a plurality of...
5245560 Sequence detection method  
A secure modem (151) sequence detector (101) may be programmed to detect the presence of various predetermined sequences in a bit stream (103). When detecting an escape ("ESC") sequence, the...
5239497 Fast pattern correlator and method  
A fast pattern correlator and method comprising received bitstream data blocks split into estimation blocks and correlation blocks. Correlation blocks are extracted and compared to an expected...
5226062 Method and device for detecting multi-level digital signal data stream termination  
A multi-level digital signal data stream termination detector is set forth that utilizes detection of multiple relatively short detection patterns separated by a time less than a predetermined...
5212697 Variable length character string detection apparatus  
A variable length character string detection apparatus comprises a character collating part which registers a character string and compares each character of an input character string with each...
5208832 Methods and apparatus for detecting repetitive sequences  
The existence of a training sequence in a demodulated signal is detected by first estimating the signal level of the demodulated signal. Next, the error level of the demodulated signal is...
5199050 Pseudorandom (PN) signal synchronization circuit and related method  
A technique for producing detection and synchronization signals with respect to a received pseudo-random (PN) signal, with optimum signal-to-noise performance and reduced complexity and cost of...
5122778 Serial word comparator  
An apparatus for determining if a received binary word corresponds to the true or complement version of a stored binary word includes means for serially multiplexing the bits of each binary word to...
5093846 Signal acquisition using modulation by a preselected code group  
In the signal acquisition system disclosed herein, frequency, phase and time uncertainties are resolved essentially simultaneously by including a preselected code group in the transmitted signal...
5073906 Synchronization word detection apparatus  
A synchronization (sync) word detection apparatus which, on receiving a signal in which a sync word having a predetermined length (N) is inserted beforehand, detects the sync word out of a...
5073864 Parallel string processor and method for a minicomputer  
A processor is disclosed for use in a computer system for comparing a number of bytes simultaneously in order to locate a control character in a string of data. The processor includes a register...
5048100 Self organizing neural network method and system for general classification of patterns  
A neural network system and method that can adaptively recognize each of many pattern configurations from a set. The system learns and maintains accurate associations between signal pattern...
5031128 Logic analyzer with double triggering action  
A logic analyzer for plural input channels generates trigger signals for first and second triggering modes selected by a multiplexer. In the first mode, a channel selector produces a detection...
5025458 Apparatus for decoding frames from a data link  
An apparatus for decoding frames from a data link including a multiple entry expect/mask buffer an input for receiving multiple character frames, a comparator for comparing characters received from...
Matches 1 - 50 out of 110 1 2 3 >