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JPS57113669A - Transmission system of digital data using digital-period, period-digital conversion - Google Patents

Transmission system of digital data using digital-period, period-digital conversion

Info

Publication number
JPS57113669A
JPS57113669A JP1881A JP1881A JPS57113669A JP S57113669 A JPS57113669 A JP S57113669A JP 1881 A JP1881 A JP 1881A JP 1881 A JP1881 A JP 1881A JP S57113669 A JPS57113669 A JP S57113669A
Authority
JP
Japan
Prior art keywords
data
period
digital
bit
transmission system
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
JP1881A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Tanaka
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP1881A priority Critical patent/JPS57113669A/en
Publication of JPS57113669A publication Critical patent/JPS57113669A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4902—Pulse width modulation; Pulse position modulation

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Dc Digital Transmission (AREA)

Abstract

PURPOSE:To achieve high speed transmission, by transmitting N-bit data corresponding to different periods in the range of N-th power of 2. CONSTITUTION:When a 4-bit data is transmitted, the data is corresponded to a signal where the conversion periods are changed in 16 steps. The digital data are paired into sets of data in 4-bit, when the data are inputted, and converted into one period signal corresponding to the sets of data for output. Since 4-bit data can be transmitted at one period, the upper limit of the transmission speed is remarkably increased. The reception is made by measuring the length of one period with the reference clock. Further, one data set is corresponded N-bit as well as 4-bit. In this case, the periods of the N-th power of 2 are required.
JP1881A 1981-01-05 1981-01-05 Transmission system of digital data using digital-period, period-digital conversion Pending JPS57113669A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1881A JPS57113669A (en) 1981-01-05 1981-01-05 Transmission system of digital data using digital-period, period-digital conversion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1881A JPS57113669A (en) 1981-01-05 1981-01-05 Transmission system of digital data using digital-period, period-digital conversion

Publications (1)

Publication Number Publication Date
JPS57113669A true JPS57113669A (en) 1982-07-15

Family

ID=11462670

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1881A Pending JPS57113669A (en) 1981-01-05 1981-01-05 Transmission system of digital data using digital-period, period-digital conversion

Country Status (1)

Country Link
JP (1) JPS57113669A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS647900A (en) * 1987-06-30 1989-01-11 Rohm Co Ltd Code communicating system for remote control system
US6918046B2 (en) * 2000-06-30 2005-07-12 Hynix Semiconductor, Inc. High speed interface device for reducing power consumption, circuit area and transmitting/receiving a 4 bit data in one clock period

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5062563A (en) * 1973-10-04 1975-05-28
JPS55160314A (en) * 1979-05-29 1980-12-13 Toshiba Corp Interface circuit of audio cassette tape recorder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5062563A (en) * 1973-10-04 1975-05-28
JPS55160314A (en) * 1979-05-29 1980-12-13 Toshiba Corp Interface circuit of audio cassette tape recorder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS647900A (en) * 1987-06-30 1989-01-11 Rohm Co Ltd Code communicating system for remote control system
JPH056959B2 (en) * 1987-06-30 1993-01-27 Rohm Kk
US6918046B2 (en) * 2000-06-30 2005-07-12 Hynix Semiconductor, Inc. High speed interface device for reducing power consumption, circuit area and transmitting/receiving a 4 bit data in one clock period

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