JPS5420643A - Detection circuit for quadrature phase - Google Patents

Detection circuit for quadrature phase

Info

Publication number
JPS5420643A
JPS5420643A JP8630877A JP8630877A JPS5420643A JP S5420643 A JPS5420643 A JP S5420643A JP 8630877 A JP8630877 A JP 8630877A JP 8630877 A JP8630877 A JP 8630877A JP S5420643 A JPS5420643 A JP S5420643A
Authority
JP
Japan
Prior art keywords
detection circuit
quadrature phase
frequency
generating circuit
low
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
JP8630877A
Other languages
Japanese (ja)
Inventor
Mikio Kondo
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 Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP8630877A priority Critical patent/JPS5420643A/en
Publication of JPS5420643A publication Critical patent/JPS5420643A/en
Pending legal-status Critical Current

Links

Landscapes

  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

PURPOSE: To discriminate whether the frequency of a received signal is high or low, by connecting detection circuits to a 90° out-of-phase signal generating circuit via diodes respectively.
COPYRIGHT: (C)1979,JPO&Japio
JP8630877A 1977-07-15 1977-07-15 Detection circuit for quadrature phase Pending JPS5420643A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8630877A JPS5420643A (en) 1977-07-15 1977-07-15 Detection circuit for quadrature phase

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8630877A JPS5420643A (en) 1977-07-15 1977-07-15 Detection circuit for quadrature phase

Publications (1)

Publication Number Publication Date
JPS5420643A true JPS5420643A (en) 1979-02-16

Family

ID=13883194

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8630877A Pending JPS5420643A (en) 1977-07-15 1977-07-15 Detection circuit for quadrature phase

Country Status (1)

Country Link
JP (1) JPS5420643A (en)

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