JPS55102947A - Data correction circuit - Google Patents

Data correction circuit

Info

Publication number
JPS55102947A
JPS55102947A JP1010179A JP1010179A JPS55102947A JP S55102947 A JPS55102947 A JP S55102947A JP 1010179 A JP1010179 A JP 1010179A JP 1010179 A JP1010179 A JP 1010179A JP S55102947 A JPS55102947 A JP S55102947A
Authority
JP
Japan
Prior art keywords
data
value
decoding
register
initial
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1010179A
Other languages
Japanese (ja)
Inventor
Tadashi Kojima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1010179A priority Critical patent/JPS55102947A/en
Priority to GB8002535A priority patent/GB2042228B/en
Priority to US06/116,555 priority patent/US4320510A/en
Priority to FR8002113A priority patent/FR2448255A1/en
Priority to DE19803003502 priority patent/DE3003502A1/en
Publication of JPS55102947A publication Critical patent/JPS55102947A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1806—Pulse code modulation systems for audio signals
    • G11B20/1813—Pulse code modulation systems for audio signals by adding special bits or symbols to the coded information

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Error Detection And Correction (AREA)
  • Detection And Correction Of Errors (AREA)

Abstract

PURPOSE:To attain high-speed operation while bringing LSI-implementation to effect by simplifying its circuit constitution by setting an initial value to a certain value by providing a simple decoding M-matrix generating circuit and then by eliminating the need for ROM of large capacity. CONSTITUTION:As a decoding M-matrix generating circuit, linear feedback shift register 21 to HX=x<m>+X<g>+1 is used; and initial data set part 22 sets initial values of register 21 to data a1 to am to be decoded, and data am or a1 to a value obtained by reversely shifting a value needed for decoding or those values by one by shift register 21. Then, a decoding selective signal is derived from the initial value or a value one-shift behind by register 21 and data am to ag+1 bearing a relation of m-g are added to data ag-a1 or a1-ag by exclusive OREX-ORs 1-5 correspondingly to output data decoded in the order of data am, am-1...ag+1, ag, ag-1...a2, and a1 or reversely.
JP1010179A 1979-01-31 1979-01-31 Data correction circuit Pending JPS55102947A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP1010179A JPS55102947A (en) 1979-01-31 1979-01-31 Data correction circuit
GB8002535A GB2042228B (en) 1979-01-31 1980-01-25 Data correcting system
US06/116,555 US4320510A (en) 1979-01-31 1980-01-29 Error data correcting system
FR8002113A FR2448255A1 (en) 1979-01-31 1980-01-31 DEVICE FOR CORRECTING ERRORS IN DIGITAL DATA
DE19803003502 DE3003502A1 (en) 1979-01-31 1980-01-31 DATA ERROR CORRECTION SYSTEM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1010179A JPS55102947A (en) 1979-01-31 1979-01-31 Data correction circuit

Publications (1)

Publication Number Publication Date
JPS55102947A true JPS55102947A (en) 1980-08-06

Family

ID=11740919

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1010179A Pending JPS55102947A (en) 1979-01-31 1979-01-31 Data correction circuit

Country Status (1)

Country Link
JP (1) JPS55102947A (en)

Similar Documents

Publication Publication Date Title
JPS5325324A (en) Address selection system
JPS55102947A (en) Data correction circuit
JPS5394162A (en) Power amplifier
JPS5351936A (en) High speed addition circuit
JPS5255831A (en) Dot-type printing system
JPS51147240A (en) Shaping circuit of wave-form
JPS5563112A (en) Variable gain amplifier circuit
JPS6472230A (en) Bit inverter
JPS53131458A (en) Constant voltage circuit
JPS5217732A (en) Integrated circuit unit
JPS55102949A (en) Data correction circuit
JPS55102948A (en) Data correction circuit
JPS5362436A (en) Fast feeder for decoder output
JPS53106530A (en) High speed data transfer unit
JPS53149715A (en) Correcting device for contour
JPS5290258A (en) Logic circuit
JPS5345954A (en) Amplifier circuit
JPS5363956A (en) Power amplifier
JPS51136223A (en) Bit insertion circuit
JPS5673934A (en) Huffman encoding method for signal having correlation between sample points
JPS6486271A (en) Accumulator
JPS5228657A (en) Constant voltage circuit
JPS5399732A (en) Memory constituting method
JPS5385132A (en) Decoder circuit of binary information
JPS5299060A (en) Switching circuit