JPS647731A - Digital tuner - Google Patents
Digital tunerInfo
- Publication number
- JPS647731A JPS647731A JP16260387A JP16260387A JPS647731A JP S647731 A JPS647731 A JP S647731A JP 16260387 A JP16260387 A JP 16260387A JP 16260387 A JP16260387 A JP 16260387A JP S647731 A JPS647731 A JP S647731A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- signal
- setting
- band width
- sampling frequency
- 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
Links
Abstract
PURPOSE:To digitally demodulate an FM signal by setting a prescribed formula between the occupied band width of an IF and a sampling frequency. CONSTITUTION:An IF signal from an analog circuit part 1 is A/D-converted 8 with a sampling frequency fs and next, FM-detected 9. The detecting circuit 9 is provided with a Hilbert transform circuit, and ATAN circuit and a difference circuit. The detected digital composite signal is demodulated with a multiplexing circuit 18. When the occupied band width of the IF signal is fw, the setting to satisfy the relation of 2fw<<fs at the section of the frequency fs is executed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16260387A JPS647731A (en) | 1987-06-30 | 1987-06-30 | Digital tuner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16260387A JPS647731A (en) | 1987-06-30 | 1987-06-30 | Digital tuner |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS647731A true JPS647731A (en) | 1989-01-11 |
Family
ID=15757729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16260387A Pending JPS647731A (en) | 1987-06-30 | 1987-06-30 | Digital tuner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS647731A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009065234A (en) * | 2007-09-04 | 2009-03-26 | Pioneer Electronic Corp | Signal processor, signal processing method, signal processing program, and recording medium thereof |
JP2009225259A (en) * | 2008-03-18 | 2009-10-01 | Pioneer Electronic Corp | Fm receiver, its method and its program and recording medium |
DE112018000271B4 (en) | 2017-01-20 | 2021-12-09 | Panasonic Intellectual Property Management Co., Ltd. | Imaging device |
-
1987
- 1987-06-30 JP JP16260387A patent/JPS647731A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009065234A (en) * | 2007-09-04 | 2009-03-26 | Pioneer Electronic Corp | Signal processor, signal processing method, signal processing program, and recording medium thereof |
JP2009225259A (en) * | 2008-03-18 | 2009-10-01 | Pioneer Electronic Corp | Fm receiver, its method and its program and recording medium |
DE112018000271B4 (en) | 2017-01-20 | 2021-12-09 | Panasonic Intellectual Property Management Co., Ltd. | Imaging device |
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