Matches 151 - 188 out of 188 < 1 2 3 4
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5142282 Data compression dictionary access minimization  
A logic circuit in an integrated circuit implementation of an adaptive data compression algorithm which uses a RAM to store dictionary entries. The logic circuit generates predetermined codewords...
5136291 Transmitting binary data files using electronic mail  
Improved means and methods are provided for transmitting binary data on a communication system, such as E-mail, which restricts the number of acceptable characters that can be transmitted. In a...
5101198 Method and device for the transmission of data between stations of a communications network, in particular for motor vehicles  
This method is characterized in that the data is encoded in the form of blocks of four bits in five-bit words, three bits (7) of each block being encoded according to the NRZ encoding method and...
5077552 Interface for coupling audio and video equipment to computer  
A method and apparatus for encoding data to be transmitted through a RS-422 standard serial interface such that the encoded data approximates one of the Control-L, Control-S wired or Control-S...
5057837 Instruction storage method with a compressed format using a mask word  
A method and apparatus for storing an instruction word in a compacted form on a storage media, the instruction word having a plurality of instruction fields, features associating with each...
5049881 Apparatus and method for very high data rate-compression incorporating lossless data compression and expansion utilizing a hashing technique  
A method and apparatus for compressing digital data that is represented as a sequence of characters drawn from an alphabet. An input data block is processed into an output data block composed of...
5028923 ISO/EIA code converting method  
A code conversion system including a table (EIT) for converting an ISO code and an EIA code into an internal code. Characters and numerals which make common use of the ISO code and EIA code are...
4999808 Dual byte order data processor  
In order that a microprocessor can respond properly to both instruction words and data words that are organized in off-chip memory in accordance with either of two byte order conventions, on-chip...
4988998 Data compression system for successively applying at least two data compression methods to an input data stream  
The improved data compression system concurrently processes both strings of repeated characters and textual substitution of input character strings. In this system, the performance of data...
4988999 Digital modulation method  
A digital modulation method for modulating 8-bit digital data into 14-bit digital modulation codes. The number of consecutive identical bits in a series of 14-bit digital modulation codes is...
4937574 Data conversion  
In a method for converting n data input bits to n data output bits, groups of m data input bits from an input data buffer (10) are used as address input for a plurality of identical substitution...
4928289 Apparatus and method for binary data transmission  
Apparatus and method for encoding data in an AC coupled bi-polar data transmission system. A stream of binary data is encoded to produce first and second binary code signals for transmission on a...
4876695 Digital data transmission system having additional bits for auxiliary data  
Data transmission system for transmitting data on a cable and in two directions between two terminal stations (LTE1/2) and via repeater stations (REP1/2). Each terminal station has a...
4855742 Method of transmitting n-bit information words, information transmission system for carrying out the method, and encoding device and decoding device for use in the information-transmission system  
An information-transmission system including an encoder for converting n-bit information words (D7, . . . , D0) into transmitted m-bit code words (C10, . . . , C0), and a decoder which reconverts...
4851837 Method and apparatus for processing digital signals prior to recording  
A method of processing digital information prior to recording comprises converting input digital words into code words, each of the same period as the input digital word but containing a greater...
4841298 Bit pattern conversion system  
A bit pattern conversion system for converting a sequence of a bit pattern between a central processing unit and a peripheral circuit, including a data bus line connected between the central...
4837571 Circuit arrangement for converting a data signal  
The described circuit arrangement for converting a data signal having a constant bit rate and code words of different length into an output signal consisting of code words of constant length but...
4833471 Data processing apparatus  
There is provided a data processing apparatus for encoding or decoding binary data such as a magnetic disk or an optical disk in which a binary data sequence is converted to a binary code sequence...
4782325 Arrangement for data compression  
For reducing the redundancy ratio of an entity key set, from very high ratios when encoded into conventional I/O code-words, down to a ratio close to zero, a non-redundant number code...
4779073 Apparatus for 3B-2T code conversion  
An apparatus converting three bits of binary data (B 1 , B 2 , B 3 ) into two ternary symbols (T 1 , T 2 ), in which even numbered pars of the ternary symbols (T 1 , T 2 ), where (T1=T2), are...
4752765 Apparatus, method and algorithm for encoding and decoding characters in a message to be transmitted between a first system and a second system  
A first data processing system sends a message to a second data processing system via a modem. A processor of the first data processing system executes the instructions of an encoding algorithm...
4641128 Method of encoding a stream of data bits, arrangement for performing the method and arrangement for decoding the stream of channel bits obtained in accordance with this method  
Method of connecting a stream of data bits of a binary source signal into a stream of data bits of a binary channel signal. The data bit stream of the source signal is divided into a sequence of...
4491934 Data compression process  
The present invention provides a method for data compression and decompression of redundant serial data. The first and second elements of the serial data are combined to form a first pair group...
4473820 Signal decoder for converting a co-directional 64 kbit/s interface signal into a binary information signal, a 64 KHZ clock and an 8 KHZ clock  
A signal decoder converts a co-directional 64 kbit/s interface signal which is divided into half waves into a binary information signal, a 64 kHz clock and an 8 kHz clock. A circuit arrangement is...
4387364 Method and apparatus for reducing DC components in a digital information signal  
A method of reducing DC components in a digital information signal comprised of a plurality of 8-bit data words by converting each of the 8-bit data words to a 10-bit data word, comprises the steps...
4377805 Magnetic recording  
A method and apparatus for encoding or decoding data in accordance with a coding format, referred to herein as Yφ and which is based on the 3PM coding format. Data encoded in accordance with the...
4337458 Data encoding method and system employing two-thirds code rate with full word look-ahead  
A method and apparatus for encoding binary data in a data stream so as to increase the number of data bits represented by one transition, such as a transition recorded on a magnetic medium, and...
4163967 Reversible code compressor  
A system for the condensation of a binary signal sequence and for the reproduction of the condensed signal sequence, in which the same encoding means is used both for the condensation and for the...
4150404 Device for transferring digital information  
A data recording device having a coding device which is supplied with a sequence of information bits to be recorded. The coding device forms coded information words of at least two different...
4040049 Tandem block digital processor for use with nonuniformly encoded digital data  
In a PCM system, character compression using nearly instantaneous companding (NIC) is known to obtain a reduction in the number of bits transmitted. Unfortunately, in tandem digital...
4032979 Method and system for encoding and decoding digital data  
A digital data encoding and decoding method and system is disclosed, with particular reference to magnetic records, in which bits are encoded in groups. Three out of four, two-bit combinations are...
4030093 Reversible code compander  
A system for the condensation of a binary signal sequence and for the reproduction of the condensed signal sequence, in which the same encoding means is used both for the condensation and for the...
3953673 Digital data signalling systems and apparatus therefor  
A data signalling system in which binary `0` is transmitted as `01` and binary `1` is transmitted alternately as `00` or `11`. This code gives good timing information for use at the receiving...
3810155 METHOD AND APPARATUS FOR CODING A DATA FLOW CARRYING BINARY INFORMATION  
The present invention relates to a method of coding a data flow carrying binary information in a local transmission equipment. The data flow comprises two kinds of data signal elements and control...
3587090 GREAT RAPIDITY DATA TRANSMISSION SYSTEM  
A data transmission system in which information originally consisting of a succession of binary elements is divided into consecutive groups having a constant number of binary elements, and in which...
3226693 Information reversing method and apparatus  
3064239 Information compression and expansion system  
2801406 Alphabetic-numeric data processor  
Matches 151 - 188 out of 188 < 1 2 3 4