JPS5533371A - Aft circuit - Google Patents

Aft circuit

Info

Publication number
JPS5533371A
JPS5533371A JP10604078A JP10604078A JPS5533371A JP S5533371 A JPS5533371 A JP S5533371A JP 10604078 A JP10604078 A JP 10604078A JP 10604078 A JP10604078 A JP 10604078A JP S5533371 A JPS5533371 A JP S5533371A
Authority
JP
Japan
Prior art keywords
electrodes
output
circuit
optional
adjustment
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
JP10604078A
Other languages
Japanese (ja)
Inventor
Hisao Shiyudo
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP10604078A priority Critical patent/JPS5533371A/en
Publication of JPS5533371A publication Critical patent/JPS5533371A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain the optional S-shaped characteristics as well as to realize the adjustment-free state by forming the resonance circuit with the elastic surface wave filter.
CONSTITUTION: Elastic surface wave element 5 is connected between AFT-use phase detector 8 and amplitude limit circuit 2 which performs the amplitude limitation with reception of the output from the video intermediate frequency amplifier ciecuit or the like. For element 5, one input electrode 4 plus two output electrodes 6 and 7 are provided on piezoelectric substrate 12, and the output of circuit 2 is introduced to electrode 4. And the frequency phase characteristics of electrodes 6 and 7 are set properly to the signals delivered from electrodes 6 and 7. In such way, the optional S-shaped characteristics can be obtained, at the same time realizing the adjustment-free state.
COPYRIGHT: (C)1980,JPO&Japio
JP10604078A 1978-08-30 1978-08-30 Aft circuit Pending JPS5533371A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10604078A JPS5533371A (en) 1978-08-30 1978-08-30 Aft circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10604078A JPS5533371A (en) 1978-08-30 1978-08-30 Aft circuit

Publications (1)

Publication Number Publication Date
JPS5533371A true JPS5533371A (en) 1980-03-08

Family

ID=14423516

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10604078A Pending JPS5533371A (en) 1978-08-30 1978-08-30 Aft circuit

Country Status (1)

Country Link
JP (1) JPS5533371A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1137176A3 (en) * 2000-03-17 2003-08-20 Fujitsu Media Devices Limited Surface acoustic wave device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1137176A3 (en) * 2000-03-17 2003-08-20 Fujitsu Media Devices Limited Surface acoustic wave device

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