ES497384A0 - Un recortador para disminuir la cadencia de palabra de una senal digital del tipo utilizado en sistemas telefonicos digitales - Google Patents
Un recortador para disminuir la cadencia de palabra de una senal digital del tipo utilizado en sistemas telefonicos digitalesInfo
- Publication number
- ES497384A0 ES497384A0 ES497384A ES497384A ES497384A0 ES 497384 A0 ES497384 A0 ES 497384A0 ES 497384 A ES497384 A ES 497384A ES 497384 A ES497384 A ES 497384A ES 497384 A0 ES497384 A0 ES 497384A0
- Authority
- ES
- Spain
- Prior art keywords
- trimmer
- slowing down
- type used
- telephone systems
- speech rate
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/0283—Filters characterised by the filter structure
- H03H17/0286—Combinations of filter structures
- H03H17/0288—Recursive, non-recursive, ladder, lattice structures
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/04—Recursive filters
- H03H17/0416—Recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
- H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
- H04B14/046—Systems or methods for reducing noise or bandwidth
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Analogue/Digital Conversion (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/098,094 US4302631A (en) | 1979-11-28 | 1979-11-28 | Decimator apparatus for decreasing the word rate of a digital signal of the type employed in digital telephone systems |
Publications (2)
Publication Number | Publication Date |
---|---|
ES497384A0 true ES497384A0 (es) | 1981-08-16 |
ES8106383A1 ES8106383A1 (es) | 1981-08-16 |
Family
ID=22267017
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES497384A Expired ES8106383A1 (es) | 1979-11-28 | 1980-11-28 | Un recortador para disminuir la cadencia de palabra de una senal digital del tipo utilizado en sistemas telefonicos digitales |
Country Status (8)
Country | Link |
---|---|
US (1) | US4302631A (es) |
JP (1) | JPS6035857B2 (es) |
BE (1) | BE886387A (es) |
BR (1) | BR8007705A (es) |
DE (1) | DE3044209A1 (es) |
ES (1) | ES8106383A1 (es) |
FR (1) | FR2484744A1 (es) |
GB (1) | GB2064902B (es) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3203012A1 (de) * | 1982-01-29 | 1983-08-04 | Siemens AG, 1000 Berlin und 8000 München | Verfahren und schaltungsanordnung zur erzeugung von interpolationswerten zwischen gespeicherten stuetzwerten |
JPS59129655U (ja) * | 1983-02-22 | 1984-08-31 | トヨタ自動車株式会社 | オ−トマチツクシ−トベルトのガイドレ−ル装置 |
EP0122594A3 (en) * | 1983-04-18 | 1986-09-10 | International Standard Electric Corporation | Line circuit with echo compensation |
US4754485A (en) * | 1983-12-12 | 1988-06-28 | Digital Equipment Corporation | Digital processor for use in a text to speech system |
US4588979A (en) * | 1984-10-05 | 1986-05-13 | Dbx, Inc. | Analog-to-digital converter |
US4694414A (en) * | 1984-12-19 | 1987-09-15 | Rca Corporation | Digital delay interpolation filter with amplitude and phase compensation |
CA1233891A (en) * | 1985-05-27 | 1988-03-08 | Peter Gillingham | Switched capacitor finite impulse response filter |
GB2179815B (en) * | 1985-08-28 | 1989-11-29 | Plessey Co Plc | Interpolator / decimator filter structure |
GB2179816B (en) * | 1985-08-28 | 1990-01-10 | Plessey Co Plc | Interpolator/decimator filter structure |
US4855944A (en) * | 1987-09-04 | 1989-08-08 | Rockwell International Corporation | Noise generator with shaped spectrum |
FR2638303B1 (fr) * | 1988-10-26 | 1991-01-18 | Texas Instruments France | Filtre interpolatif perfectionne |
JP2583610B2 (ja) * | 1989-07-07 | 1997-02-19 | 三菱電機株式会社 | A/d、d/a変換装置 |
US5018166A (en) * | 1989-10-10 | 1991-05-21 | Hayes Microcomputer Products, Inc. | Method and apparatus for baud timing recovery |
US5018090A (en) * | 1990-03-13 | 1991-05-21 | Rca Licensing Corporation | Digital interpolation circuitry |
GB9205614D0 (en) * | 1992-03-14 | 1992-04-29 | Innovision Ltd | Sample rate converter suitable for converting between digital video formats |
US5404397A (en) * | 1992-04-16 | 1995-04-04 | U.S. Phillips Corporation | Conference system with automatic speaker detection and speaker unit |
DE4239396C1 (de) * | 1992-11-24 | 1994-02-24 | Itt Ind Gmbh Deutsche | Verfahren zur Erzeugung eines modifizierten Videosignals |
US5917734A (en) * | 1996-09-24 | 1999-06-29 | Advanced Micro Device Inc. | Parallel decimator method and apparatus |
US6941330B2 (en) * | 2000-09-27 | 2005-09-06 | Hughes Electronics Corporation | Feed forward sigma delta interpolator for use in a fractional-N synthesizer |
US7120546B2 (en) * | 2003-04-23 | 2006-10-10 | Texas Instruments Incorporated | Integrated spectrum analyzer for tuners |
US8614994B2 (en) * | 2009-07-09 | 2013-12-24 | Broadcom Corporation | Method and system for implementing multiple timing domains for primary and secondary synchronization detection in EUTRA/LTE |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2197499A5 (es) * | 1972-08-23 | 1974-03-22 | Ibm France | |
NL176211C (nl) * | 1974-09-16 | 1985-03-01 | Philips Nv | Interpolerend digitaal filter. |
US3973081A (en) * | 1975-09-12 | 1976-08-03 | Trw Inc. | Feedback residue compression for digital speech systems |
US4020332A (en) * | 1975-09-24 | 1977-04-26 | Bell Telephone Laboratories, Incorporated | Interpolation-decimation circuit for increasing or decreasing digital sampling frequency |
US4021616A (en) * | 1976-01-08 | 1977-05-03 | Ncr Corporation | Interpolating rate multiplier |
-
1979
- 1979-11-28 US US06/098,094 patent/US4302631A/en not_active Expired - Lifetime
-
1980
- 1980-11-24 DE DE19803044209 patent/DE3044209A1/de not_active Withdrawn
- 1980-11-25 GB GB8037704A patent/GB2064902B/en not_active Expired
- 1980-11-26 BR BR8007705A patent/BR8007705A/pt unknown
- 1980-11-28 ES ES497384A patent/ES8106383A1/es not_active Expired
- 1980-11-28 JP JP55166811A patent/JPS6035857B2/ja not_active Expired
- 1980-11-28 FR FR8025241A patent/FR2484744A1/fr active Granted
- 1980-11-28 BE BE2/58882A patent/BE886387A/fr not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US4302631A (en) | 1981-11-24 |
JPS5698049A (en) | 1981-08-07 |
GB2064902B (en) | 1983-09-14 |
ES8106383A1 (es) | 1981-08-16 |
FR2484744A1 (fr) | 1981-12-18 |
JPS6035857B2 (ja) | 1985-08-16 |
GB2064902A (en) | 1981-06-17 |
DE3044209A1 (de) | 1981-08-27 |
FR2484744B1 (es) | 1984-10-26 |
BE886387A (fr) | 1981-06-01 |
BR8007705A (pt) | 1981-06-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19970203 |