JPS6477327A - Sample rate converting circuit - Google Patents
Sample rate converting circuitInfo
- Publication number
- JPS6477327A JPS6477327A JP62233943A JP23394387A JPS6477327A JP S6477327 A JPS6477327 A JP S6477327A JP 62233943 A JP62233943 A JP 62233943A JP 23394387 A JP23394387 A JP 23394387A JP S6477327 A JPS6477327 A JP S6477327A
- Authority
- JP
- Japan
- Prior art keywords
- ipf
- interpolation
- band
- sample rate
- phase difference
- 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
Landscapes
- Color Television Systems (AREA)
- Television Systems (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Abstract
PURPOSE:To reduce the waveform distortion of an output over a wide range of a signal band by using an interpolration filter(IPF) having flat characteristics at 0-f1/2 band and cutting characteristics at >= f1/2 band to increase the sample rate of input data m times and to execute linear interpolation. CONSTITUTION:Input data xn are preprocessed by an interpolation filter (IPF) 31 through an input terminal 26 to execute interpolation. Output data from the IPF 31 are inputted to a linear interpolator 28. A phase difference detecting circuit 24 finds out phase difference information between a clock 2CK1 obtained by duplicating the 1st sampling clock CK1 and the 2nd sampling clock CK2. Thus, the deterioration of frequency characteristics can be reduced by linear interpolation and the characteristics can be put close to more flat characteristics.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62233943A JPS6477327A (en) | 1987-09-18 | 1987-09-18 | Sample rate converting circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62233943A JPS6477327A (en) | 1987-09-18 | 1987-09-18 | Sample rate converting circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6477327A true JPS6477327A (en) | 1989-03-23 |
Family
ID=16963048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62233943A Pending JPS6477327A (en) | 1987-09-18 | 1987-09-18 | Sample rate converting circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6477327A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06204797A (en) * | 1992-10-23 | 1994-07-22 | Grass Valley Group Inc:The | Sampling rate converter |
EP0884687A1 (en) * | 1997-06-10 | 1998-12-16 | Matsushita Electric Industrial Co., Ltd. | Interpolating device |
WO2006077795A1 (en) * | 2005-01-21 | 2006-07-27 | Pioneer Corporation | Sampling frequency converting apparatus |
JP2007202157A (en) * | 2006-01-24 | 2007-08-09 | Harman Becker Automotive Systems Gmbh | Sampling rate conversion |
JP2012191418A (en) * | 2011-03-10 | 2012-10-04 | Ricoh Co Ltd | Data reception circuit, data transmission/reception system and data reception method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58154943A (en) * | 1982-01-21 | 1983-09-14 | Sony Corp | Converter of digital sampling rate |
JPS61204700A (en) * | 1985-03-07 | 1986-09-10 | ソニー株式会社 | Sampling frequency converter |
-
1987
- 1987-09-18 JP JP62233943A patent/JPS6477327A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58154943A (en) * | 1982-01-21 | 1983-09-14 | Sony Corp | Converter of digital sampling rate |
JPS61204700A (en) * | 1985-03-07 | 1986-09-10 | ソニー株式会社 | Sampling frequency converter |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06204797A (en) * | 1992-10-23 | 1994-07-22 | Grass Valley Group Inc:The | Sampling rate converter |
EP0884687A1 (en) * | 1997-06-10 | 1998-12-16 | Matsushita Electric Industrial Co., Ltd. | Interpolating device |
WO2006077795A1 (en) * | 2005-01-21 | 2006-07-27 | Pioneer Corporation | Sampling frequency converting apparatus |
JP2007202157A (en) * | 2006-01-24 | 2007-08-09 | Harman Becker Automotive Systems Gmbh | Sampling rate conversion |
JP2012191418A (en) * | 2011-03-10 | 2012-10-04 | Ricoh Co Ltd | Data reception circuit, data transmission/reception system and data reception method |
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