JPS5595449A - Framing code detection circuit - Google Patents

Framing code detection circuit

Info

Publication number
JPS5595449A
JPS5595449A JP197679A JP197679A JPS5595449A JP S5595449 A JPS5595449 A JP S5595449A JP 197679 A JP197679 A JP 197679A JP 197679 A JP197679 A JP 197679A JP S5595449 A JPS5595449 A JP S5595449A
Authority
JP
Japan
Prior art keywords
framing code
bit
detecting
detection circuit
code detection
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
JP197679A
Other languages
Japanese (ja)
Inventor
Juichi Takashima
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 JP197679A priority Critical patent/JPS5595449A/en
Publication of JPS5595449A publication Critical patent/JPS5595449A/en
Pending legal-status Critical Current

Links

Landscapes

  • Synchronisation In Digital Transmission Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Communication Control (AREA)

Abstract

PURPOSE: To attain reduction in the number of used gates and improvement in reliability besides IC-implementation, by detecting a framing code of data transmission by using multi-input gates.
CONSTITUTION: Data of the same bit length as a framing code is received and stored in shift register 31 in series, and respective bits of a parallel output are compared 32, bit by bit, with bit outputs F0∼F7 of a corresponding framing code. Then when there are not less than two dissidence comparison output signal among comparison output signals of respective bits, a signal showing that the framing code has not been detected correctly by detecting 42 that. In this case, detecting circuit 41, equipped with multi-input gates 41∼49, AND circuits 50∼57, and OR circuit 58, generates a fixed detection output.
COPYRIGHT: (C)1980,JPO&Japio
JP197679A 1979-01-11 1979-01-11 Framing code detection circuit Pending JPS5595449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP197679A JPS5595449A (en) 1979-01-11 1979-01-11 Framing code detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP197679A JPS5595449A (en) 1979-01-11 1979-01-11 Framing code detection circuit

Publications (1)

Publication Number Publication Date
JPS5595449A true JPS5595449A (en) 1980-07-19

Family

ID=11516567

Family Applications (1)

Application Number Title Priority Date Filing Date
JP197679A Pending JPS5595449A (en) 1979-01-11 1979-01-11 Framing code detection circuit

Country Status (1)

Country Link
JP (1) JPS5595449A (en)

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