JPS6478022A - Or circuit - Google Patents

Or circuit

Info

Publication number
JPS6478022A
JPS6478022A JP23512587A JP23512587A JPS6478022A JP S6478022 A JPS6478022 A JP S6478022A JP 23512587 A JP23512587 A JP 23512587A JP 23512587 A JP23512587 A JP 23512587A JP S6478022 A JPS6478022 A JP S6478022A
Authority
JP
Japan
Prior art keywords
light
logical sum
different
parts
wavelength
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
JP23512587A
Other languages
Japanese (ja)
Inventor
Takashi Hamada
Katsura Kawakami
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP23512587A priority Critical patent/JPS6478022A/en
Publication of JPS6478022A publication Critical patent/JPS6478022A/en
Pending legal-status Critical Current

Links

Landscapes

  • Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)

Abstract

PURPOSE:To obtain a logical sum by selecting some of output of logic circuits simultaneously by providing plural light emitting parts to emit light with different wavelength, and plural light receiving parts with the different light receiving sensitivity of a frequency chatacteristic. CONSTITUTION:Output signals from the logic circuits 107-109 connected to the light emitting parts 104-106 having different frequency characteristics are transmitted to an optical fiber 101 from each of the light emitting parts 104-106 after being converted to light with different wavelength. At the light receiving parts 102 and 103, the frequency characteristic with high light receiving sensitivity is attached on the light with the wavelength corresponding to a desired signal so as to obtain the logical sum of the signals, and no influence is given on the light with another wavelength. In such a way, it is possible to receive the light of plural desired signals by one Iight receiving part, and to obtain the logical sum selectively by using the light.
JP23512587A 1987-09-18 1987-09-18 Or circuit Pending JPS6478022A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23512587A JPS6478022A (en) 1987-09-18 1987-09-18 Or circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23512587A JPS6478022A (en) 1987-09-18 1987-09-18 Or circuit

Publications (1)

Publication Number Publication Date
JPS6478022A true JPS6478022A (en) 1989-03-23

Family

ID=16981423

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23512587A Pending JPS6478022A (en) 1987-09-18 1987-09-18 Or circuit

Country Status (1)

Country Link
JP (1) JPS6478022A (en)

Similar Documents

Publication Publication Date Title
PL330188A1 (en) Information entering apparatus
DE68927330D1 (en) Color test knife
CA2140082A1 (en) Laser Control Arrangement for Tuning a Laser
EP0314034A3 (en) Logic operation circuit
EP0280329A3 (en) Chromatic dispersion measuring system for optical fibers
US4761060A (en) Optical delay type flipflop and shift register using it
ES8704049A1 (en) Optical receiver.
JPS6478022A (en) Or circuit
JPS6471247A (en) Interface circuit
JPS6478021A (en) Or circuit
JPS57154954A (en) Transmitting system of optical data
JPS6425580A (en) Printed circuit board
JPS56164966A (en) Electric field intensity display device
EP0323553A3 (en) Method of increasing sensitivity of photosensitive member for inputting digital light
JPS6423222A (en) Optical signal transmitter for parallel interface
SU1670790A1 (en) Optoelectronic toggle flip-flop
DE3163796D1 (en) Laser transmitter with an amplifier-controlled semi-conductor
JPS5469303A (en) Light communication system
JPS6442919A (en) Optical logic circuit
JPS5634246A (en) Light digital measuring unit
JPS5683089A (en) Light modulation system
SU1453617A1 (en) Analyzing device of facsimile transmitter
REEDY et al. Optoelectronic integrated circuit multiplier(Patent Application)
JPS57194645A (en) Optical multiplex transmission system
JPS57109903A (en) Optical switch