JPS55162132A - Data transfer system - Google Patents

Data transfer system

Info

Publication number
JPS55162132A
JPS55162132A JP6989179A JP6989179A JPS55162132A JP S55162132 A JPS55162132 A JP S55162132A JP 6989179 A JP6989179 A JP 6989179A JP 6989179 A JP6989179 A JP 6989179A JP S55162132 A JPS55162132 A JP S55162132A
Authority
JP
Japan
Prior art keywords
response
signal
time
transfer
data transfer
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
JP6989179A
Other languages
Japanese (ja)
Inventor
Yoshinori Fujioka
Shinichi Nakamura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP6989179A priority Critical patent/JPS55162132A/en
Publication of JPS55162132A publication Critical patent/JPS55162132A/en
Pending legal-status Critical Current

Links

Landscapes

  • Small-Scale Networks (AREA)
  • Information Transfer Systems (AREA)

Abstract

PURPOSE: To make it possible to utilize a data transfer line with efficiency by reducing the overhead of a response time by performing transfer for and after the 2nd time according to the procedure where no response is required corresponding to the response speed of an opposite equipment recognized by the 1st transfer.
CONSTITUTION: In data transfer for and after the 2nd time, mode change-over signal 16 changes into "0" to set FF12 and transfer start signal MS2 requiring no response is set. On receiving signal MS2, a memory unit fetches data after a certain time in the same way as the 1st transfer, but makes no response on arrival of an SS signal (a response signal to transfer start signal MS1 requesting a response). On the other hand, the moment FF12 is set in an input-output controller, timing circuit 18 is put into operation to reset FF12 by signal RST after a certain time and then signal MS2 is reset to complete the data transfer. Thus, the occupation time of a data transfer line for and after the 2nd time is shortened.
COPYRIGHT: (C)1980,JPO&Japio
JP6989179A 1979-06-06 1979-06-06 Data transfer system Pending JPS55162132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6989179A JPS55162132A (en) 1979-06-06 1979-06-06 Data transfer system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6989179A JPS55162132A (en) 1979-06-06 1979-06-06 Data transfer system

Publications (1)

Publication Number Publication Date
JPS55162132A true JPS55162132A (en) 1980-12-17

Family

ID=13415793

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6989179A Pending JPS55162132A (en) 1979-06-06 1979-06-06 Data transfer system

Country Status (1)

Country Link
JP (1) JPS55162132A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59100656A (en) * 1982-11-30 1984-06-09 Yokogawa Hokushin Electric Corp Hand shake transmitting system
US4841827A (en) * 1987-10-08 1989-06-27 Casio Computer Co., Ltd. Input apparatus of electronic system for extracting pitch data from input waveform signal
JPH02116947A (en) * 1988-10-26 1990-05-01 Takeshi Sakamura Data transfer system
US4924746A (en) * 1987-12-28 1990-05-15 Casio Computer Co., Ltd. Input apparatus of electronic device for extracting pitch from input waveform signal
US5001960A (en) * 1988-06-10 1991-03-26 Casio Computer Co., Ltd. Apparatus for controlling reproduction on pitch variation of an input waveform signal
US5014589A (en) * 1988-03-31 1991-05-14 Casio Computer Co., Ltd. Control apparatus for electronic musical instrument for generating musical tone having tone pitch corresponding to input waveform signal
US5018428A (en) * 1986-10-24 1991-05-28 Casio Computer Co., Ltd. Electronic musical instrument in which musical tones are generated on the basis of pitches extracted from an input waveform signal
US5024134A (en) * 1988-05-02 1991-06-18 Casio Computer Co., Ltd. Pitch control device for electronic stringed instrument
US5048391A (en) * 1988-06-27 1991-09-17 Casio Computer Co., Ltd. Electronic musical instrument for generating musical tones on the basis of characteristics of input waveform signal
US5147970A (en) * 1989-08-11 1992-09-15 Casio Computer Co., Ltd. Electronic musical instrument for generating musical tones on the basis of characteristics of input waveform signal

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59100656A (en) * 1982-11-30 1984-06-09 Yokogawa Hokushin Electric Corp Hand shake transmitting system
US5018428A (en) * 1986-10-24 1991-05-28 Casio Computer Co., Ltd. Electronic musical instrument in which musical tones are generated on the basis of pitches extracted from an input waveform signal
US4841827A (en) * 1987-10-08 1989-06-27 Casio Computer Co., Ltd. Input apparatus of electronic system for extracting pitch data from input waveform signal
US5018427A (en) * 1987-10-08 1991-05-28 Casio Computer Co., Ltd. Input apparatus of electronic system for extracting pitch data from compressed input waveform signal
US4924746A (en) * 1987-12-28 1990-05-15 Casio Computer Co., Ltd. Input apparatus of electronic device for extracting pitch from input waveform signal
US5014589A (en) * 1988-03-31 1991-05-14 Casio Computer Co., Ltd. Control apparatus for electronic musical instrument for generating musical tone having tone pitch corresponding to input waveform signal
US5024134A (en) * 1988-05-02 1991-06-18 Casio Computer Co., Ltd. Pitch control device for electronic stringed instrument
US5001960A (en) * 1988-06-10 1991-03-26 Casio Computer Co., Ltd. Apparatus for controlling reproduction on pitch variation of an input waveform signal
US5048391A (en) * 1988-06-27 1991-09-17 Casio Computer Co., Ltd. Electronic musical instrument for generating musical tones on the basis of characteristics of input waveform signal
JPH02116947A (en) * 1988-10-26 1990-05-01 Takeshi Sakamura Data transfer system
US5147970A (en) * 1989-08-11 1992-09-15 Casio Computer Co., Ltd. Electronic musical instrument for generating musical tones on the basis of characteristics of input waveform signal

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