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JP3158458B2 |
In a subband coding device for coding a digital device input signal which is a one-dimensional or a two-dimensional signal, a single coding circuit is used instead of a conventional combination of coders and a multiplexer. The coding cir...
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JP2001111633A |
To provide a receiver that can read a Manchester code by correcting disturbance in the received Manchester code. The receiver consists of a reception means that receives a signal including the Manchester code, a setting means that sets a...
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JP3153084B2 |
PURPOSE: To facilitate demodulation and shorten a frame transmission period TF by imposing pulse phase modulation in units of 2-bit data. CONSTITUTION: When the 2-bit data is (0, 0) in normal mode, a pulse signal with pulse width (t) is ...
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JP2001086170A |
To provide a method for increasing a communication capacity of a digital communication channel employing an electronic pulse at a low cost. The communication capacity can be increased without using a high quality communication channel th...
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JP2001077870A |
To decrease an area of a chip and its power consumption by decreasing number of components. A comparator 8 compares a multi-value signal Vin taking levels V1-V4 (V4>V3>V2>V1) with a reference voltage Vh (V3>Vh>V2). When the multi-value s...
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JP2001077869A |
To provide a data receiver for a high-speed data transmission system with reliability that adopts the CIMT coding system for its simplex configuration. The data receiver 12 is provided with a CIMT decoder 16 that receives a digital data ...
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JP3148189B2 |
To provide a channel coding method which has a high conversion ratio and a high recording density ratio for the transmission and recording of digital data. This channel coding method includes a stage 30 which receives 1st data, a stage 3...
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JP3148430B2 |
PURPOSE: To allow the characteristic of a light emitting diode from being not susceptible to the effect of a secular change and to simplify a drive circuit by allowing the drive circuit to receive a pulse output from a signal changeover ...
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JP2001069120A |
To provide signal encoding for transmitting plural digital signals through a single physical medium. Digital signals more than two are encoded using respective line codes more than two. The line code is selected from combination with the...
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JP3139754B2 |
A method is provided for encoding and decoding data to be transmitted over a communication network via transformer coupling. The data is pulse width modulated, and split into separate first and second data streams containing alternate pu...
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JP2001057031A |
To obtain a high coding gain at a detector by conducting a coding based on the control data of M data/bits of a (J)1 block and the rate (M/N) code that conducts mapping between N symbol bits of one block and storing the coded results in ...
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JP3138829B2 |
PURPOSE: To economize the circuit configuration by simultaneously implementing error correction coding and run length limited coding with respect to the coding/ decoding control system capable of error correction. CONSTITUTION: This syst...
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JP3137411B2 |
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JP3135646B2 |
2.1.In Application P 40 41 717, an improvement of the signal/noise ratio in a bitstream regenerator is achieved with a circuit simplified compared with the Viterbi detection circuit. It is the object of the present invention to enable th...
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JP3135641B2 |
PURPOSE: To detect the inverted polarity of a pair of differential input lines and to automatically corret it. CONSTITUTION: A differential receiver 10 incorporated in MAU receiving a link pulse and a Manchester packed has a polarity det...
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JP3135567B2 |
The aim is to prevent the propagation of errors from one data word to the next and to safeguard the polarity received by the signal. In the signal there are time sections in which characteristic signals are transmitted which make it poss...
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JP3136742B2 |
PURPOSE: To prevent the influence of variation in the pulse width of a communication signal by transmitting/receiving a communication signal obtained by coding a transmission/receiving a communication edge interval or a trailing edge int...
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JP2001036590A |
To provide a serial transmitter that can suppress harmonics being a cause to an EMI(electromagnetic interference) even at a high transfer rate. The serial transmitter is provided with a conversion means that converts a transmission signa...
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JP3127655B2 |
PURPOSE: To decrease conversion tables, to recluse the circuit scale, and to lower the cost by converting specific data, which can not be converted by a 1st conversion table, into variable length codes by a 2nd conversion table and outpu...
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JP2001022366A |
To reduce auditory noise and to suppress deterioration in sound quality when an electronic watermark is embedded in waveform data of a sound by connecting adjacent sections by cross-fading waveform data at an overlap part between the adj...
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JP2001500308A |
A three state switch detection circuit converts a three state input to a two-bit binary output readable by a micro-controller or other digital logic. The circuit utilized complementary NPN and PNP transistors having coupled emitters and ...
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JP2000349843A |
To accelerate data transmission without inviting an increase in costs by providing a demodulating means which performs septenary conversion of data inputted through an antenna after performing octonary demodulation of the data.A modulato...
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JP2000341131A |
To convert a digital PCM data stream into a PWM signal with small calculation quantity by checking the difference between the values at the intersection of extrapolated lines and at sample points on both the sides of the intersection, mu...
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JP2000341136A |
To obtain the most likely code with simple configuration by limiting possible state transitions of an input signal according to a corrected temporary discrimination result, detecting the most probable state transition from among the limi...
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JP3112435B2 |
To improve recording density on a digital recording medium by inputting data in another specific data unit and encoding the inputted data when the number of continuous specific bits is smaller than a prescribed value at the time of encod...
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JP2000515703A |
An apparatus encodes data blocks into code blocks, each code block containing more symbols than its respective data block. The apparatus includes a data block latch for receiving individual data blocks and for dividing each data block in...
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JP3107968B2 |
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JP3105055B2 |
PURPOSE: To improve the reliability of coordinate control by preventing mis-judgment of transmission information in a control system for an automobile. CONSTITUTION: A traction controller (TRC unit) 10 sends a high constant level signal ...
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JP2000295108A |
To decrease the number of data transfer lines by allowing a transmission section to convert a clock signal and data into a ternary signal and to provide an output of it and decoding the ternary signal into the clock signal and the data a...
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JP3099849B2 |
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JP2000286903A |
To provide a new bit coding system for serial communication which can overcome the problems such as the internal synchronization of a distributed system architecture and the EMI emission and also can make the best use of bands. This bit ...
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JP3097005B2 |
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JP2000269819A |
To provide a GS encoder which does not need a precoder when a code is transmitted to a PR channel by using a division circuit whose constitution is similar to the precoder fitted to the transmission characteristic of the PR channel. Inpu...
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JP3091497B2 |
A digital modulation methods is provided in which at a head of an input block (pre-translation), each of a plurality of different types of initial data of t bits is multiplexed to generate a plurality of different types of multiplexed bl...
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JP3089962B2 |
For decoding a diphase-coded signal the signal level is sampled with a sample signal of frequency equal to that of the bit clock pulse and each sample value is logically linked to the preceding sample value in accordance with an XOR func...
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JP3087259B2 |
A modulation scheme and system, compatible with both the asynchronous IRDA mode and the synchronous mode of IR communication, involves Non-Return-to-Zero-Inverted (NRZI) and Flash pulse encoding in conjunction with zero-bit stuffing. A d...
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JP3084897B2 |
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JP3083011B2 |
A method of recording data in a recording medium is performed as following manner by using an RLL (Run Length Limited) Code represented by (d,k,m,n) = (1,7,2,3). When it is assumed that X is an indeterminate bit which is determined by th...
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JP2000236260A |
To obtain an improved method for connecting signal paths which supply signals at substantially different signal rates by making an encoded signal include bits obtained by encoding bits of a digital signal through recursive encoding algor...
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JP3081047B2 |
For reducing the d.c. component of a digital signal in which a good many data words are put together in data blocks each having the same number of words, a supplementary word is derived and is transmitted or stored along with the data wo...
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JP2000232364A |
To simplify the constitution of a multi-valued signal identification circuit for converting small amplitude multi-valued signals to a logic circuit level and to improve noise resistance performance as well. A level shift circuit block co...
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JP2000232487A |
To economically produce a multi-signal forming signal which can be fast and easily enciphered by sensing plural multi-signals at plural levels, recording the output signal of each level and comparing the recorded signal with the output s...
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JP3070926B2 |
A dedicated hardware block in the form of a hardware bit coder device for generating IR/RF bit coding protocols. The hardware bit coder device is configurable to any user-defined frame length and single or multiple frame strings. The dev...
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JP2000209289A |
To execute communication by means of simple circuit configuration by detecting plural change points of the symbols of a transmission digital signal, detecting the values of the symbols between the detecting change point to the next, conv...
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JP3069830B2 |
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JP3065919B2 |
Biphase or FM encoding is combined with Flash modulation in infrared (IR) communication. By shrinking the coded pulse width in the modulation process, power dissipation is effectively reduced to the point where FM encoding can be advanta...
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JP3066666B2 |
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JP3067568B2 |
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JP2000196683A |
To reduce a cost and power consumption by giving information on a receiving timing by a sub-substrate on a receiving side by a rising edge and varying the timing of the falling edge of a reference control signal so as to give prescribed ...
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JP3063376B2 |
PURPOSE:To execute PWM communication at a high speed and accurately by correcting the pulse width of a received data pulse based on the pulse width of a reference pulse. CONSTITUTION:A transmission side ECU(electronic control unit) 1 is ...
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