MX151011A - Mejoras en detector de tono continuo pseudodigital - Google Patents
Mejoras en detector de tono continuo pseudodigitalInfo
- Publication number
- MX151011A MX151011A MX185904A MX18590481A MX151011A MX 151011 A MX151011 A MX 151011A MX 185904 A MX185904 A MX 185904A MX 18590481 A MX18590481 A MX 18590481A MX 151011 A MX151011 A MX 151011A
- Authority
- MX
- Mexico
- Prior art keywords
- pseudodigital
- continuous tone
- tone detector
- detector
- continuous
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/022—Selective call receivers
- H04W88/025—Selective call decoders
- H04W88/027—Selective call decoders using frequency address codes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/005—Control by a pilot signal
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Noise Elimination (AREA)
- Complex Calculations (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/121,563 US4302817A (en) | 1980-02-14 | 1980-02-14 | Digital Pseudo continuous tone detector |
Publications (1)
Publication Number | Publication Date |
---|---|
MX151011A true MX151011A (es) | 1984-09-06 |
Family
ID=22397506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX185904A MX151011A (es) | 1980-02-14 | 1981-02-10 | Mejoras en detector de tono continuo pseudodigital |
Country Status (8)
Country | Link |
---|---|
US (1) | US4302817A (es) |
EP (1) | EP0045801B1 (es) |
JP (1) | JPS57500214A (es) |
BR (1) | BR8106698A (es) |
CA (1) | CA1159564A (es) |
IL (1) | IL61912A (es) |
MX (1) | MX151011A (es) |
WO (1) | WO1981002353A1 (es) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2512306A1 (fr) * | 1981-08-27 | 1983-03-04 | Telecommunications Sa | Dispositif numerique de reconnaissance de frequences |
US4534041A (en) * | 1982-02-12 | 1985-08-06 | Northern Telecom Limited | Digital circuit for determining the envelope frequency of PCM encoded call progress tones in a telephone system |
US4538281A (en) * | 1982-05-06 | 1985-08-27 | Rockwell International Corporation | Adaptive acquisition of multiple access codes |
US4590583A (en) * | 1982-07-16 | 1986-05-20 | At&T Bell Laboratories | Coin telephone measurement circuitry |
US4455617A (en) * | 1982-08-30 | 1984-06-19 | Motorola, Inc. | Multiple simultaneous tone decoder |
US4513385A (en) * | 1983-01-31 | 1985-04-23 | Motorola, Inc. | Apparatus and method for suppressing side lobe response in a digitally sampled system |
US4573135A (en) * | 1983-04-25 | 1986-02-25 | Rca Corporation | Digital lowpass filter having controllable gain |
US4534043A (en) * | 1983-06-27 | 1985-08-06 | Racal Data Communications, Inc. | Test tone detector apparatus and method modem using same |
US4573017A (en) * | 1984-01-03 | 1986-02-25 | Motorola, Inc. | Unitary phase and frequency adjust network for a multiple frequency digital phase locked loop |
US4617520A (en) * | 1984-01-03 | 1986-10-14 | Motorola, Inc. | Digital lock detector for a phase-locked loop |
US4574243A (en) * | 1984-01-03 | 1986-03-04 | Motorola, Inc. | Multiple frequency digital phase locked loop |
US4668917A (en) * | 1984-01-03 | 1987-05-26 | Motorola, Inc. | Phase comparator for use with a digital phase locked loop or other phase sensitive device |
US4698769A (en) * | 1985-02-04 | 1987-10-06 | American Telephone And Telegraph Company | Supervisory audio tone detection in a radio channel |
US4675880A (en) * | 1985-05-02 | 1987-06-23 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Antimultipath communication by injecting tone into null in signal spectrum |
US4750215A (en) * | 1986-06-24 | 1988-06-07 | Cincinnati Microwave, Inc. | Police radar signal detection circuitry for a police radar warning receiver |
JP2632852B2 (ja) * | 1987-06-13 | 1997-07-23 | 株式会社ケンウッド | デジタルssb変調器 |
US4769610A (en) * | 1987-06-29 | 1988-09-06 | Motorola, Inc. | Tone decoder |
US5274579A (en) * | 1990-01-02 | 1993-12-28 | Motorola, Inc. | Digital tone detector |
US6424925B1 (en) | 1999-08-31 | 2002-07-23 | Integrated Telecom Express, Inc. | Circuit and method for detecting a tone signal |
US20050227622A1 (en) * | 2004-04-08 | 2005-10-13 | Tin Lee W | Continuous dual tone controlled squelch system |
JP4805629B2 (ja) * | 2005-08-04 | 2011-11-02 | 本田技研工業株式会社 | エンコーダ |
KR100897770B1 (ko) * | 2007-01-30 | 2009-05-15 | 삼성전자주식회사 | 전송 엔벌로프 검출기의 문턱 전압들 조절 방법들과 상기방법들을 이용한 장치들 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3131354A (en) * | 1961-06-12 | 1964-04-28 | Motorola Inc | Tone control receiver circuit |
US3602820A (en) * | 1968-10-02 | 1971-08-31 | Computer Equipment Corp | Tunable tone squelch encoder-decoder incorporating an active filter feedback tuning network |
US3748451A (en) * | 1970-08-21 | 1973-07-24 | Control Data Corp | General purpose matrix processor with convolution capabilities |
US3950635A (en) * | 1974-01-23 | 1976-04-13 | James Nickolas Constant | Digital matched filter and correlator using random access memory |
USRE29460E (en) * | 1974-07-22 | 1977-10-25 | Gte Automatic Electric Laboratories Incorporated | PCM tone receiver using optimum statistical technique |
US3962645A (en) * | 1974-11-06 | 1976-06-08 | General Electric Company | Tone frequency detecting circuit |
US4021653A (en) * | 1975-10-14 | 1977-05-03 | Motorola, Inc. | Digital programmable tone detector |
US4185172A (en) * | 1976-12-17 | 1980-01-22 | Cselt - Centro Studi E Laboratori Telecomunicazioni S.P.A. | Method of and means for detecting digitized multi frequency-coded signals |
US4127824A (en) * | 1977-04-04 | 1978-11-28 | Motorola, Inc. | Sampling filter-detector |
DE2723570C3 (de) * | 1977-05-25 | 1980-09-04 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Signalempfänger |
US4164036A (en) * | 1977-12-07 | 1979-08-07 | Honeywell Inc. | Quadrature correlation phase reversal pulse detector |
US4216463A (en) * | 1978-08-10 | 1980-08-05 | Motorola, Inc. | Programmable digital tone detector |
-
1980
- 1980-02-14 US US06/121,563 patent/US4302817A/en not_active Expired - Lifetime
-
1981
- 1981-01-08 WO PCT/US1981/000028 patent/WO1981002353A1/en active IP Right Grant
- 1981-01-08 BR BR8106698A patent/BR8106698A/pt unknown
- 1981-01-08 EP EP81900771A patent/EP0045801B1/en not_active Expired
- 1981-01-08 JP JP56501122A patent/JPS57500214A/ja active Pending
- 1981-01-15 IL IL61912A patent/IL61912A/xx unknown
- 1981-01-16 CA CA000368664A patent/CA1159564A/en not_active Expired
- 1981-02-10 MX MX185904A patent/MX151011A/es unknown
Also Published As
Publication number | Publication date |
---|---|
EP0045801B1 (en) | 1986-07-23 |
JPS57500214A (es) | 1982-02-04 |
BR8106698A (pt) | 1981-12-22 |
EP0045801A1 (en) | 1982-02-17 |
IL61912A (en) | 1983-09-30 |
US4302817A (en) | 1981-11-24 |
WO1981002353A1 (en) | 1981-08-20 |
CA1159564A (en) | 1983-12-27 |
EP0045801A4 (en) | 1982-07-06 |
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