CA964732A - Data demodulator employing multiple correlations and filters - Google Patents

Data demodulator employing multiple correlations and filters

Info

Publication number: CA964732A
Authority: CA; Canada
Prior art keywords: filters; employing multiple; data demodulator; multiple correlations; demodulator employing
Prior art date: 1971-07-01
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

Application number

CA144,443A

Other languages

English (en)

Other versions

CA144443S (en

Inventor

Donald G. Shuda

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Lockheed Corp

Original Assignee

Sanders Associates Inc

Priority date (The priority date 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 date listed.)

1971-07-01

Filing date

1972-06-12

Publication date

1975-03-18

1972-06-12 Application filed by Sanders Associates Inc filed Critical Sanders Associates Inc

1975-03-18 Application granted granted Critical

1975-03-18 Publication of CA964732A publication Critical patent/CA964732A/en

Status Expired legal-status Critical Current

Links

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
- H04L7/033—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop
- H04L7/0331—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop with a digital phase-locked loop [PLL] processing binary samples, e.g. add/subtract logic for correction of receiver clock
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
- H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
- H04L27/2331—Demodulator circuits; Receiver circuits using non-coherent demodulation wherein the received signal is demodulated using one or more delayed versions of itself

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

CA144,443A 1971-07-01 1972-06-12 Data demodulator employing multiple correlations and filters Expired CA964732A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US15884471A	1971-07-01	1971-07-01

Publications (1)

Publication Number	Publication Date
CA964732A true CA964732A (en)	1975-03-18

Family

ID=22569958

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA144,443A Expired CA964732A (en)	1971-07-01	1972-06-12	Data demodulator employing multiple correlations and filters

Country Status (12)

Country	Link
US (1)	US3729684A (sv)
AU (1)	AU465781B2 (sv)
BE (1)	BE785329A (sv)
CA (1)	CA964732A (sv)
CH (1)	CH560996A5 (sv)
DE (1)	DE2231992A1 (sv)
FR (1)	FR2143722B1 (sv)
GB (1)	GB1401822A (sv)
IL (3)	IL47894A (sv)
IT (1)	IT960710B (sv)
NL (1)	NL7208769A (sv)
SE (2)	SE383819B (sv)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3924197A (en) *	1972-12-27	1975-12-02	Mitsubishi Electric Corp	Circuit for reproducing reference carrier wave
US3886462A (en) *	1972-12-27	1975-05-27	Mitsubishi Electric Corp	Circuit for reproducing reference carrier wave
JPS5016462A (sv) *	1973-06-11	1975-02-21
US3938052A (en) *	1974-05-09	1976-02-10	Teletype Corporation	Digital demodulator for phase-modulated waveforms
US4007331A (en) *	1975-08-13	1977-02-08	Bunker Ramo Corporation	Apparatus for demodulation of relative phase modulated binary data
US4007330A (en) *	1975-08-13	1977-02-08	Bunker Ramo Corporation	Method and apparatus for demodulation of relative phase modulated binary data
US3997847A (en) *	1975-10-29	1976-12-14	Bell Telephone Laboratories, Incorporated	Digital demodulator for differentially encoded phase-shift-keyed data
US4010323A (en) *	1975-10-29	1977-03-01	Bell Telephone Laboratories, Incorporated	Digital timing recovery
US4019149A (en) *	1976-01-16	1977-04-19	Bell Telephone Laboratories, Incorporated	Correlative data demodulator
US4169246A (en) *	1976-12-06	1979-09-25	Motorola, Inc.	Digital carrier correction circuit
JPS60223259A (ja) *	1984-04-19	1985-11-07	Nippon Kogaku Kk <Nikon>	Ｐｓｋ又はｄｐｓｋ復調回路
JPS6231238A (ja) *	1985-08-02	1987-02-10	Canon Inc	復調装置
US5247470A (en) *	1987-07-29	1993-09-21	E-Systems, Inc.	Method and apparatus for estimating signal components of a filter output
GB2213662A (en) *	1987-12-11	1989-08-16	Philips Electronic Associated	Data demodulator carrier phase-error detector
US4876699A (en) *	1988-05-06	1989-10-24	Rockwell International Corporation	High speed sampled data digital phase detector apparatus
US5208839A (en) *	1991-05-28	1993-05-04	General Electric Company	Symbol synchronizer for sampled signals
US7187730B1 (en)	2001-03-21	2007-03-06	Marvell International Ltd.	Method and apparatus for predicting CCK subsymbols
US11588610B2 (en) *	2020-09-14	2023-02-21	Texas Instruments Incorporated	Data transition tracking for received data

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1191843A (en) *	1966-07-07	1970-05-13	Plessey Co Ltd	Improvements in or relating to Data Transmission Apparatus
US3519937A (en) *	1967-08-08	1970-07-07	Bell Telephone Labor Inc	Quaternary differential-phase-modulated pcm repeater
SE336599B (sv) *	1967-08-08	1971-07-12	Western Electric Co
US3614639A (en) *	1969-07-30	1971-10-19	Ibm	Fsk digital demodulator with majority decision filtering
US3571712A (en) *	1969-07-30	1971-03-23	Ibm	Digital fsk/psk detector
US3656064A (en) *	1969-09-17	1972-04-11	Sanders Associates Inc	Data demodulator employing comparison
US3646451A (en) *	1970-08-07	1972-02-29	Bell Telephone Labor Inc	Timing extraction circuit using a recirculating delay generator

1971
- 1971-07-01 US US00158844A patent/US3729684A/en not_active Expired - Lifetime
1972
- 1972-05-23 AU AU42623/72A patent/AU465781B2/en not_active Expired
- 1972-05-24 IL IL47894A patent/IL47894A/en unknown
- 1972-05-24 IL IL39522A patent/IL39522A/en unknown
- 1972-06-12 CA CA144,443A patent/CA964732A/en not_active Expired
- 1972-06-19 FR FR7222004A patent/FR2143722B1/fr not_active Expired
- 1972-06-20 GB GB2885472A patent/GB1401822A/en not_active Expired
- 1972-06-23 BE BE785329A patent/BE785329A/xx unknown
- 1972-06-26 IT IT26218/72A patent/IT960710B/it active
- 1972-06-26 NL NL7208769A patent/NL7208769A/xx unknown
- 1972-06-29 DE DE2231992A patent/DE2231992A1/de not_active Ceased
- 1972-06-30 CH CH980972A patent/CH560996A5/xx not_active IP Right Cessation
- 1972-07-03 SE SE7208712A patent/SE383819B/sv unknown
1975
- 1975-02-26 SE SE7502171A patent/SE398187B/sv unknown
- 1975-08-08 IL IL47894A patent/IL47894A0/xx unknown

Also Published As

Publication number	Publication date
AU4262372A (en)	1973-11-29
US3729684A (en)	1973-04-24
NL7208769A (sv)	1973-01-03
DE2231992A1 (de)	1973-01-11
IL39522A (en)	1977-05-31
IL39522A0 (en)	1972-11-28
BE785329A (fr)	1972-10-16
SE398187B (sv)	1977-12-05
SE7502171L (sv)	1975-02-26
GB1401822A (en)	1975-07-30
CH560996A5 (sv)	1975-04-15
FR2143722A1 (sv)	1973-02-09
FR2143722B1 (sv)	1976-08-13
IL47894A (en)	1977-05-31
IT960710B (it)	1973-11-30
SE383819B (sv)	1976-03-29
IL47894A0 (en)	1975-11-25
AU465781B2 (en)	1975-10-09

Publication	Publication Date	Title
CA1020283A (en)	1977-11-01	Data collection and utilization system
CA926476A (en)	1973-05-15	Data demodulator employing comparison
AU465781B2 (en)	1975-10-09	Data demodulator employing multiple correlations and filters
AU458285B2 (en)	1975-02-03	Data stores
AU466743B2 (en)	1975-11-06	Filtering element
CA985422A (en)	1976-03-09	Data terminals
AU462579B2 (en)	1975-06-10	Numerical filter and digital data transmission system including said filter
CA961163A (en)	1975-01-14	Programme-controlled data processing systems
AU464366B2 (en)	1975-08-21	Data processing system
CA984292A (en)	1976-02-24	Filter element
CA969664A (en)	1975-06-17	Data handling systems
CA1008560A (en)	1977-04-12	Data demodulator employing multiple correlations and filters
CA1003343A (en)	1977-01-11	Filter elements
CA980941A (en)	1975-12-30	Aromatic-oxalic polyhydrozides and solutions thereof
CA953423A (en)	1974-08-20	Data handling systems
CA958815A (en)	1974-12-03	Data processing systems
CA954221A (en)	1974-09-03	Data handling systems
AU464668B2 (en)	1975-09-04	Demodulator
CA1000409A (en)	1976-11-23	Data processor
CA885594A (en)	1971-11-09	Data record
CA957080A (en)	1974-10-29	Multiple configuration data processing system
AU445490B2 (en)	1972-03-09	Data demodulator employing comparison
CA870186A (en)	1971-05-04	Data card
CA807817A (en)	1969-03-04	Data demodulator
CA874060A (en)	1971-06-22	Data storage element