JPS56108160A - Interface circuit - Google Patents

Interface circuit

Info

Publication number
JPS56108160A
JPS56108160A JP955280A JP955280A JPS56108160A JP S56108160 A JPS56108160 A JP S56108160A JP 955280 A JP955280 A JP 955280A JP 955280 A JP955280 A JP 955280A JP S56108160 A JPS56108160 A JP S56108160A
Authority
JP
Japan
Prior art keywords
circuit
signal
high level
amplified
battery
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.)
Granted
Application number
JP955280A
Other languages
Japanese (ja)
Other versions
JPH0130169B2 (en
Inventor
Shoichi Saka
Isamu Haneda
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP955280A priority Critical patent/JPS56108160A/en
Publication of JPS56108160A publication Critical patent/JPS56108160A/en
Publication of JPH0130169B2 publication Critical patent/JPH0130169B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To reduce the consumption of a battery, by amplifying a reproduction signal sent from a recording medium only when necessary. CONSTITUTION:The reproduction signal (a) sent from the recording medium is amplified by the amplifying circuit 1 and then shaped through the waveform shaping circuit 2 to obtain the signal (b). This signal (b) is supplied to a computer. The control circuit 3 is connected to the circuit 1. For the circuit 3, the transistor TR is turned off with reception of the read instruction (c) having a low level with the point (x) set to a high level. Then the circuit 1 is cut off from the circuit 3, and the input signal (a) is amplified and shaped to obtain the output (b). On the other hand, the TR is turned on when the signal (c) is set to a high level with the point (x) set to a low level. Then the output (b) is set to a high level regardless of the input (a). As a result, the power consumption is reduced for a battery.
JP955280A 1980-01-29 1980-01-29 Interface circuit Granted JPS56108160A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP955280A JPS56108160A (en) 1980-01-29 1980-01-29 Interface circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP955280A JPS56108160A (en) 1980-01-29 1980-01-29 Interface circuit

Publications (2)

Publication Number Publication Date
JPS56108160A true JPS56108160A (en) 1981-08-27
JPH0130169B2 JPH0130169B2 (en) 1989-06-16

Family

ID=11723435

Family Applications (1)

Application Number Title Priority Date Filing Date
JP955280A Granted JPS56108160A (en) 1980-01-29 1980-01-29 Interface circuit

Country Status (1)

Country Link
JP (1) JPS56108160A (en)

Also Published As

Publication number Publication date
JPH0130169B2 (en) 1989-06-16

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