JPS6468037A - Infrared fm space transmission equipment - Google Patents

Infrared fm space transmission equipment

Info

Publication number
JPS6468037A
JPS6468037A JP62224841A JP22484187A JPS6468037A JP S6468037 A JPS6468037 A JP S6468037A JP 62224841 A JP62224841 A JP 62224841A JP 22484187 A JP22484187 A JP 22484187A JP S6468037 A JPS6468037 A JP S6468037A
Authority
JP
Japan
Prior art keywords
band
signal
gain difference
frequency characteristics
light reception
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
JP62224841A
Other languages
Japanese (ja)
Inventor
Kenzo Inazaki
Norio Yoshida
Toshimasa Hamada
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 JP62224841A priority Critical patent/JPS6468037A/en
Publication of JPS6468037A publication Critical patent/JPS6468037A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Communication System (AREA)

Abstract

PURPOSE:To improve the distortion rate of a demodulated signal by providing a band stop filter having frequency characteristics, which cancel the gain difference in a band of the frequency characteristics which a tuning light reception part has, on the reception side. CONSTITUTION:A band stop filter 26 having the frequency characteristics which cancel the gain difference in the band of the frequency characteristic which a tuning light reception part 22 has is provided on the reception side. That is, when FM infrared rays subjected to space transmission are received on the reception side, the output signal of the tuning light reception part 22 is the FM signal including an AM component because the frequency characteristics of the tuning light reception part 22 has the gain difference in the band. This FM signal is inputted to the band stop filter 26, which has the characteristics which cancels the gain difference in the band, and has the AM component eliminated and is demodulated to a data signal by a demodulating part 23. Thus, the AM component of the reception FM signal is eliminated to improve the distortion rate of the demodulated signal.
JP62224841A 1987-09-08 1987-09-08 Infrared fm space transmission equipment Pending JPS6468037A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62224841A JPS6468037A (en) 1987-09-08 1987-09-08 Infrared fm space transmission equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62224841A JPS6468037A (en) 1987-09-08 1987-09-08 Infrared fm space transmission equipment

Publications (1)

Publication Number Publication Date
JPS6468037A true JPS6468037A (en) 1989-03-14

Family

ID=16820014

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62224841A Pending JPS6468037A (en) 1987-09-08 1987-09-08 Infrared fm space transmission equipment

Country Status (1)

Country Link
JP (1) JPS6468037A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5602670A (en) * 1994-10-26 1997-02-11 Rheem Manufacturing Company Optical data receiver employing a solar cell resonant circuit and method for remote optical data communication

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5602670A (en) * 1994-10-26 1997-02-11 Rheem Manufacturing Company Optical data receiver employing a solar cell resonant circuit and method for remote optical data communication

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