JPS6442994A - Frequency shift circuit - Google Patents

Frequency shift circuit

Info

Publication number
JPS6442994A
JPS6442994A JP62198079A JP19807987A JPS6442994A JP S6442994 A JPS6442994 A JP S6442994A JP 62198079 A JP62198079 A JP 62198079A JP 19807987 A JP19807987 A JP 19807987A JP S6442994 A JPS6442994 A JP S6442994A
Authority
JP
Japan
Prior art keywords
band
signal
frequency
high precision
shifted
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
JP62198079A
Other languages
Japanese (ja)
Other versions
JP2559418B2 (en
Inventor
Yasuhiro Hirano
Norihiro Suzuki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62198079A priority Critical patent/JP2559418B2/en
Publication of JPS6442994A publication Critical patent/JPS6442994A/en
Application granted granted Critical
Publication of JP2559418B2 publication Critical patent/JP2559418B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PURPOSE:To obtain a frequency shift circuit with wide frequency band width by separating a high precision signal to plural frequency band signal, executing amplitude modulation, removing the high harmonic component of sample frequency mixed within an original signal band, extracting each frequency-shifted high precision signal and adding them. CONSTITUTION:The high precision signal is separated to the plural kinds of frequency band signal such as the YH1 of the 1.2fsc-1.5fsc band and the YH2 of the 1.4fsc-1.8fsc band, for example. For the separated signal YH1 and YH2, a carrier mu0 is respectively amplitude-modulated. Then the frequency-shifted YH1' signal is generated in a band pass filter 0.7fsc-fsc band and the frequency- shifted YH2' signal is generated in a band pass filter 0.4fsc-0.8fsc band. In this case, turneback from the high harmonic component is not mixed to the signals YH1' and YH2'. Then, when the both of them is added, the high precision signal can be constituted in the 0.4fsc-fsc band. Thus the frequency shift whose band width is wide can be attained.
JP62198079A 1987-08-10 1987-08-10 Frequency shift circuit and method Expired - Lifetime JP2559418B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62198079A JP2559418B2 (en) 1987-08-10 1987-08-10 Frequency shift circuit and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62198079A JP2559418B2 (en) 1987-08-10 1987-08-10 Frequency shift circuit and method

Publications (2)

Publication Number Publication Date
JPS6442994A true JPS6442994A (en) 1989-02-15
JP2559418B2 JP2559418B2 (en) 1996-12-04

Family

ID=16385168

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62198079A Expired - Lifetime JP2559418B2 (en) 1987-08-10 1987-08-10 Frequency shift circuit and method

Country Status (1)

Country Link
JP (1) JP2559418B2 (en)

Also Published As

Publication number Publication date
JP2559418B2 (en) 1996-12-04

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