JPS51124303A - Method and device for reducing dummy channel noise* crosstalk noise and quantizing error noise of digital information transmitter - Google Patents
Method and device for reducing dummy channel noise* crosstalk noise and quantizing error noise of digital information transmitterInfo
- Publication number
- JPS51124303A JPS51124303A JP51003107A JP310776A JPS51124303A JP S51124303 A JPS51124303 A JP S51124303A JP 51003107 A JP51003107 A JP 51003107A JP 310776 A JP310776 A JP 310776A JP S51124303 A JPS51124303 A JP S51124303A
- Authority
- JP
- Japan
- Prior art keywords
- noise
- digital information
- information transmitter
- dummy channel
- crosstalk
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
- H03M1/0617—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence
- H03M1/0634—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence by averaging out the errors, e.g. using sliding scale
- H03M1/0636—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence by averaging out the errors, e.g. using sliding scale in the amplitude domain
- H03M1/0639—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence by averaging out the errors, e.g. using sliding scale in the amplitude domain using dither, e.g. using triangular or sawtooth waveforms
- H03M1/0641—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence by averaging out the errors, e.g. using sliding scale in the amplitude domain using dither, e.g. using triangular or sawtooth waveforms the dither being a random signal
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/10—Arrangements for reducing cross-talk between channels
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/66—Digital/analogue converters
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Analogue/Digital Conversion (AREA)
- Dc Digital Transmission (AREA)
- Time-Division Multiplex Systems (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/568,769 US3999129A (en) | 1975-04-16 | 1975-04-16 | Method and apparatus for error reduction in digital information transmission systems |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS51124303A true JPS51124303A (en) | 1976-10-29 |
Family
ID=24272658
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP51003107A Pending JPS51124303A (en) | 1975-04-16 | 1976-01-13 | Method and device for reducing dummy channel noise* crosstalk noise and quantizing error noise of digital information transmitter |
Country Status (6)
Country | Link |
---|---|
US (1) | US3999129A (ja) |
JP (1) | JPS51124303A (ja) |
CA (1) | CA1042353A (ja) |
DE (1) | DE2553121B2 (ja) |
FR (1) | FR2308257A1 (ja) |
GB (1) | GB1535219A (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5498508A (en) * | 1978-01-16 | 1979-08-03 | Rolm Corp | Method of reducing noise in digital information transmission system and device for transmitting digital information by reducing transmission error caused by noise |
JP2012531821A (ja) * | 2009-06-26 | 2012-12-10 | クゥアルコム・インコーポレイテッド | 可変のデジタルアナログ変換器(dac)サンプリングレートを使用する干渉低減 |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS522317A (en) * | 1975-06-24 | 1977-01-10 | Sony Corp | Video signal transmitting system |
JPS5271960A (en) * | 1975-12-11 | 1977-06-15 | Fukuda Denshi Kk | Realltime nonnphase filter using delay circuit |
US4184116A (en) * | 1977-04-07 | 1980-01-15 | Argos Products Company, Inc. | Communication system having analog-to-digital-to-analog conversion means |
US4233500A (en) * | 1977-10-07 | 1980-11-11 | Phillips Petroleum Company | Method and apparatus for providing a digital output in response to an analog input and for providing an analog output in response to a digital input |
GB2054324B (en) * | 1979-07-02 | 1984-03-21 | Rolm Corp | Tdm loop communication systems |
US4363127A (en) * | 1981-01-12 | 1982-12-07 | Ford Aerospace & Communications Corporation | Line signaling apparatus and techniques for digital data links |
AT378293B (de) * | 1982-06-24 | 1985-07-10 | Siemens Ag Oesterreich | System zur uebertragung abgetasteter niederfrequenter analogsignale |
DE3235881A1 (de) * | 1982-09-28 | 1984-03-29 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur unterdrueckung von einem sinusfoermigen hoerton bei der uebertragung in einem digitalen fernmeldevermittlungssystem ueberlagerten quantisierungsgeraeuschen |
US4639792A (en) * | 1982-10-21 | 1987-01-27 | The Stypher Corporation | Apparatus for decoding video address code signals |
EP0112428B1 (fr) * | 1982-12-28 | 1987-08-12 | International Business Machines Corporation | Convertisseur analogique/numérique |
US4589140A (en) * | 1983-03-21 | 1986-05-13 | Beltronics, Inc. | Method of and apparatus for real-time high-speed inspection of objects for identifying or recognizing known and unknown portions thereof, including defects and the like |
US4543599A (en) * | 1983-05-25 | 1985-09-24 | Rca Corporation | Analog-to-digital conversion apparatus including double dither signal sources |
US4550309A (en) * | 1984-02-16 | 1985-10-29 | Hewlett Packard Company | Analog to digital converter |
EP0179056B1 (en) * | 1984-04-20 | 1990-08-22 | Motorola, Inc. | Extended threshold analog to digital conversion apparatus for an rf receiver |
EP0310207B1 (en) * | 1984-07-06 | 1991-11-21 | British Aerospace Public Limited Company | Analog-to-digital conversion apparatus |
US4594726A (en) * | 1984-11-29 | 1986-06-10 | Rca Corporation | Dedithering circuitry in digital TV receiver |
JPH0611117B2 (ja) * | 1984-12-31 | 1994-02-09 | ティアツク株式会社 | ディジタル−アナログ変換装置 |
US4893316A (en) * | 1985-04-04 | 1990-01-09 | Motorola, Inc. | Digital radio frequency receiver |
US4652832A (en) * | 1985-07-05 | 1987-03-24 | Motorola, Inc. | Frequency resolution in a digital oscillator |
JPS63209209A (ja) * | 1987-02-25 | 1988-08-30 | Yamaha Corp | デイジタル信号処理回路 |
JPS6459162A (en) * | 1987-08-31 | 1989-03-06 | Japan Engine Valve Mfg | Cross coil type mobile magnet instrument |
US4905177A (en) * | 1988-01-19 | 1990-02-27 | Qualcomm, Inc. | High resolution phase to sine amplitude conversion |
US4926130A (en) * | 1988-01-19 | 1990-05-15 | Qualcomm, Inc. | Synchronous up-conversion direct digital synthesizer |
JP3012887B2 (ja) * | 1989-03-13 | 2000-02-28 | 日本テキサス・インスツルメンツ株式会社 | 信号変換装置 |
US5144308A (en) * | 1991-05-21 | 1992-09-01 | At&T Bell Laboratories | Idle channel tone and periodic noise suppression for sigma-delta modulators using high-level dither |
DE69233256T2 (de) * | 1991-05-29 | 2004-05-27 | Pacific Microsonics, Inc., Berkeley | Verbesserungen in Codierung-/Decodierungssystemen |
US5227794A (en) * | 1991-12-23 | 1993-07-13 | Ford Motor Company | Frequency multiplexed analog-digital conversion |
US5351084A (en) * | 1992-07-02 | 1994-09-27 | Global Telecommunications Industries, Inc. | Compressed video bit rate reduction system |
US5402124A (en) * | 1992-11-25 | 1995-03-28 | Dolby Laboratories Licensing Corporation | Encoder and decoder with improved quantizer using reserved quantizer level for small amplitude signals |
US5408233A (en) * | 1993-07-29 | 1995-04-18 | Motorola, Inc. | Noise source for an analog-to-digital converter |
US5525984A (en) * | 1993-08-06 | 1996-06-11 | Adc Telecommunications, Inc. | Optimization of weighted signal-to-noise ratio for a digital video encoder |
DE19514007C1 (de) * | 1995-04-13 | 1996-09-12 | Wandel & Goltermann | Verfahren zur Verbesserung des Klirrverhaltens von Analog-Digitalwandlern |
SE509408C2 (sv) * | 1997-05-27 | 1999-01-25 | Ericsson Telefon Ab L M | Anordning och förfarande för reducering av periodiskt brus i en sigma-delta modulator |
US6433723B1 (en) * | 1998-07-30 | 2002-08-13 | Siemens Power Transmission & Distribution, Inc. | Analog-to-digital conversion with reduced error |
JP2000310942A (ja) * | 1999-02-25 | 2000-11-07 | Yazaki Corp | 疑似乱数発生器、ストリーム暗号化方法、及びストリーム暗号通信方法 |
US20050057381A1 (en) * | 2003-08-06 | 2005-03-17 | Micronetics, Inc. | Dithering module with diplexer |
US6906649B2 (en) * | 2003-08-06 | 2005-06-14 | Micronetics, Inc | Dithering module with diplexer |
US20060061349A1 (en) * | 2004-09-22 | 2006-03-23 | Guidry David W | Versatile system for time-independent signal sampling |
DK177939B1 (en) * | 2012-12-18 | 2015-01-19 | Miitors Aps | A method for linearization of the output of an analog-to-digital converter and measuring instruments using such method |
US9985646B1 (en) | 2017-10-18 | 2018-05-29 | Schweitzer Engineering Laboratories, Inc. | Analog-to-digital converter verification using quantization noise properties |
US10033400B1 (en) | 2017-10-18 | 2018-07-24 | Schweitzer Engineering Laboratories, Inc. | Analog-to-digital converter verification using quantization noise properties |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3244808A (en) * | 1962-01-12 | 1966-04-05 | Massachusetts Inst Technology | Pulse code modulation with few amplitude steps |
GB1218015A (en) * | 1967-03-13 | 1971-01-06 | Nat Res Dev | Improvements in or relating to systems for transmitting television signals |
US3614622A (en) * | 1968-04-30 | 1971-10-19 | Codex Corp | Data transmission method and system |
US3656152A (en) * | 1970-02-16 | 1972-04-11 | Hughes Aircraft Co | Improved a-d/d-a converter system |
US3877022A (en) * | 1973-05-14 | 1975-04-08 | Weston Instruments Inc | Enhancing resolution in analog-to-digital conversion by adding statistically controlled noise to the analog input signal |
US3881097A (en) * | 1973-05-14 | 1975-04-29 | Weston Instruments Inc | Fully digital spectrum analyzer using time compression and discrete fourier transform techniques |
-
1975
- 1975-04-16 US US05/568,769 patent/US3999129A/en not_active Expired - Lifetime
- 1975-11-14 CA CA239,689A patent/CA1042353A/en not_active Expired
- 1975-11-26 DE DE2553121A patent/DE2553121B2/de not_active Withdrawn
- 1975-12-09 GB GB50446/75A patent/GB1535219A/en not_active Expired
- 1975-12-12 FR FR7538222A patent/FR2308257A1/fr active Granted
-
1976
- 1976-01-13 JP JP51003107A patent/JPS51124303A/ja active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5498508A (en) * | 1978-01-16 | 1979-08-03 | Rolm Corp | Method of reducing noise in digital information transmission system and device for transmitting digital information by reducing transmission error caused by noise |
JPS6318372B2 (ja) * | 1978-01-16 | 1988-04-18 | Intaanashonaru Bijinesu Mashiinzu Corp | |
JP2012531821A (ja) * | 2009-06-26 | 2012-12-10 | クゥアルコム・インコーポレイテッド | 可変のデジタルアナログ変換器(dac)サンプリングレートを使用する干渉低減 |
Also Published As
Publication number | Publication date |
---|---|
GB1535219A (en) | 1978-12-13 |
FR2308257B1 (ja) | 1980-04-25 |
DE2553121A1 (de) | 1976-10-21 |
FR2308257A1 (fr) | 1976-11-12 |
US3999129A (en) | 1976-12-21 |
CA1042353A (en) | 1978-11-14 |
DE2553121B2 (de) | 1979-09-13 |
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