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JPS54162935A - Variable length shift register device - Google Patents

Variable length shift register device

Info

Publication number
JPS54162935A
JPS54162935A JP7178778A JP7178778A JPS54162935A JP S54162935 A JPS54162935 A JP S54162935A JP 7178778 A JP7178778 A JP 7178778A JP 7178778 A JP7178778 A JP 7178778A JP S54162935 A JPS54162935 A JP S54162935A
Authority
JP
Japan
Prior art keywords
shift
circuit
shift register
variable length
bit
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
JP7178778A
Other languages
Japanese (ja)
Inventor
Takashi Nagashima
Akio Kudo
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 JP7178778A priority Critical patent/JPS54162935A/en
Publication of JPS54162935A publication Critical patent/JPS54162935A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
    • G11C19/28—Digital stores in which the information is moved stepwise, e.g. shift registers using semiconductor elements

Landscapes

  • Shift Register Type Memory (AREA)

Abstract

PURPOSE:To secure an optional dynamic variation for the shift bit length through a simple constitution by connecting longitudinally the shift circuits comprising several units of the fixed bit length shift resister and the by-pass circuit functioning by the selection signals supplied from outside. CONSTITUTION:The variable length shift register device is constituted by connecting longitudinally up to i= O-n shift circuit 101i+1 comprising shift register 11i+1 of 2<i> (i= O-n) and by-pass circuit 12i+1. In case, the device is operated with the 5-bit shift structure, for example, the signals of bit patterns of 1, 0, 1, 0 . . . and . . O are supplied to selection signal input terminals S1-Sn of the by-pass circuit. As a result, AND gate A1 of circuit 121 and 123 opens each to deliver the shift data of shift register 111 and 113 featuring the 2<0> and 2<2> bits. And circuit 122 plus 124-12n open AND gate A2 to deliver the input after by-passing. As a result, shift-in data SIN is shifted by 5 bits to be delivered in the form of shift-out data SOUT.
JP7178778A 1978-06-14 1978-06-14 Variable length shift register device Pending JPS54162935A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7178778A JPS54162935A (en) 1978-06-14 1978-06-14 Variable length shift register device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7178778A JPS54162935A (en) 1978-06-14 1978-06-14 Variable length shift register device

Publications (1)

Publication Number Publication Date
JPS54162935A true JPS54162935A (en) 1979-12-25

Family

ID=13470626

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7178778A Pending JPS54162935A (en) 1978-06-14 1978-06-14 Variable length shift register device

Country Status (1)

Country Link
JP (1) JPS54162935A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2626421A1 (en) * 1988-01-21 1989-07-28 Codex Corp DECIMATED DIGITAL FILTER, ANALOG / DIGITAL CONVERTER INCLUDING APPLICATION AND ANALOG / DIGITAL CONVERSION METHOD

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2626421A1 (en) * 1988-01-21 1989-07-28 Codex Corp DECIMATED DIGITAL FILTER, ANALOG / DIGITAL CONVERTER INCLUDING APPLICATION AND ANALOG / DIGITAL CONVERSION METHOD

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