DE69527482D1 - Filterauswahlschaltung für ein digitales Wiederabtastsystem - Google Patents
Filterauswahlschaltung für ein digitales WiederabtastsystemInfo
- Publication number
- DE69527482D1 DE69527482D1 DE69527482T DE69527482T DE69527482D1 DE 69527482 D1 DE69527482 D1 DE 69527482D1 DE 69527482 T DE69527482 T DE 69527482T DE 69527482 T DE69527482 T DE 69527482T DE 69527482 D1 DE69527482 D1 DE 69527482D1
- Authority
- DE
- Germany
- Prior art keywords
- selection circuit
- filter selection
- digital resampling
- resampling system
- digital
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/0223—Computation saving measures; Accelerating measures
- H03H17/0225—Measures concerning the multipliers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/0294—Variable filters; Programmable filters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/06—Non-recursive filters
- H03H17/0621—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing
- H03H17/0635—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies
- H03H17/065—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being integer
- H03H17/0657—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being integer where the output-delivery frequency is higher than the input sampling frequency, i.e. interpolation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/06—Non-recursive filters
- H03H17/0621—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing
- H03H17/0635—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies
- H03H17/065—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being integer
- H03H17/0664—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being integer where the output-delivery frequency is lower than the input sampling frequency, i.e. decimation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
- H04N7/0122—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal the input and the output signals having different aspect ratios
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/317,474 US5613084A (en) | 1994-10-04 | 1994-10-04 | Interpolation filter selection circuit for sample rate conversion using phase quantization |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69527482D1 true DE69527482D1 (de) | 2002-08-29 |
DE69527482T2 DE69527482T2 (de) | 2003-05-08 |
Family
ID=23233818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69527482T Expired - Fee Related DE69527482T2 (de) | 1994-10-04 | 1995-09-28 | Filterauswahlschaltung für ein digitales Wiederabtastsystem |
Country Status (4)
Country | Link |
---|---|
US (1) | US5613084A (de) |
EP (1) | EP0706262B1 (de) |
JP (1) | JPH08181950A (de) |
DE (1) | DE69527482T2 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5617088A (en) * | 1994-01-26 | 1997-04-01 | Sony Corporation | Sampling frequency converting device and memory address control device |
TW348266B (en) * | 1996-03-11 | 1998-12-21 | Toshiba Co Ltd | Semiconductor memory device |
US6618443B1 (en) | 1997-03-12 | 2003-09-09 | Matsushita Electric Industrial Co., Ltd. | Upsampling filter for a down conversion system |
DE69821693T2 (de) | 1997-03-12 | 2005-04-07 | Matsushita Electric Industrial Co., Ltd., Kadoma | Mpeg-decoder zur erzeugung multipler standardausgangssignale |
US6788347B1 (en) | 1997-03-12 | 2004-09-07 | Matsushita Electric Industrial Co., Ltd. | HDTV downconversion system |
US6175592B1 (en) | 1997-03-12 | 2001-01-16 | Matsushita Electric Industrial Co., Ltd. | Frequency domain filtering for down conversion of a DCT encoded picture |
US7554612B2 (en) * | 2000-10-03 | 2009-06-30 | Thomson Licensing | Method and system for buffering pixel data |
US7053896B2 (en) | 2001-02-07 | 2006-05-30 | Micron Technology, Inc. | Resampling system and method for graphics data including sine-wave components |
US6531969B2 (en) * | 2001-05-02 | 2003-03-11 | Portalplayer, Inc. | Resampling system and apparatus |
EP1741282A1 (de) * | 2004-04-30 | 2007-01-10 | Nvidia Corporation | Verfahren und vorrichtung zur vertikalen skalierung von pixeldaten |
US8904299B1 (en) * | 2006-07-17 | 2014-12-02 | The Mathworks, Inc. | Graphical user interface for analysis of a sequence of data in object-oriented environment |
US7583771B2 (en) * | 2006-08-22 | 2009-09-01 | Schweitzer Engineering Laboratories, Inc. | Systems and methods for resampling unreliable data |
US9030337B2 (en) * | 2013-10-07 | 2015-05-12 | Telefonaktiebolaget L M Ericsson (Publ) | Multi-branch down converting fractional rate change filter |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58219841A (ja) * | 1982-06-15 | 1983-12-21 | Kokusai Denshin Denwa Co Ltd <Kdd> | 標本化周波数の高速変換回路 |
JP2592810B2 (ja) * | 1986-09-30 | 1997-03-19 | 株式会社東芝 | サンプルレート変換回路 |
US4774581A (en) * | 1987-04-14 | 1988-09-27 | Rca Licensing Corporation | Television picture zoom system |
EP0356597B1 (de) * | 1988-08-30 | 1994-03-30 | International Business Machines Corporation | Massnahmen zur Verbesserung des Verfahrens und Vorrichtung eines digitalen Frequenzumsetzungsfilters |
US5057911A (en) * | 1989-10-19 | 1991-10-15 | Matsushita Electric Industrial Co., Ltd. | System and method for conversion of digital video signals |
JP3255179B2 (ja) * | 1992-02-14 | 2002-02-12 | ソニー株式会社 | データ検出装置 |
US5475628A (en) * | 1992-09-30 | 1995-12-12 | Analog Devices, Inc. | Asynchronous digital sample rate converter |
US5331346A (en) * | 1992-10-07 | 1994-07-19 | Panasonic Technologies, Inc. | Approximating sample rate conversion system |
US5274372A (en) * | 1992-10-23 | 1993-12-28 | Tektronix, Inc. | Sampling rate conversion using polyphase filters with interpolation |
-
1994
- 1994-10-04 US US08/317,474 patent/US5613084A/en not_active Expired - Lifetime
-
1995
- 1995-09-28 DE DE69527482T patent/DE69527482T2/de not_active Expired - Fee Related
- 1995-09-28 EP EP95115356A patent/EP0706262B1/de not_active Expired - Lifetime
- 1995-10-04 JP JP7257718A patent/JPH08181950A/ja not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP0706262B1 (de) | 2002-07-24 |
JPH08181950A (ja) | 1996-07-12 |
EP0706262A2 (de) | 1996-04-10 |
EP0706262A3 (de) | 1997-11-19 |
DE69527482T2 (de) | 2003-05-08 |
US5613084A (en) | 1997-03-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |