CA957022A - Integrated circuit decoder responsive to two sequential tones with group call provisions - Google Patents
Integrated circuit decoder responsive to two sequential tones with group call provisionsInfo
- Publication number
- CA957022A CA957022A CA142,264A CA142264A CA957022A CA 957022 A CA957022 A CA 957022A CA 142264 A CA142264 A CA 142264A CA 957022 A CA957022 A CA 957022A
- Authority
- CA
- Canada
- Prior art keywords
- integrated circuit
- group call
- decoder responsive
- circuit decoder
- sequential tones
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15146071A | 1971-06-09 | 1971-06-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA957022A true CA957022A (en) | 1974-10-29 |
Family
ID=22538866
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA142,264A Expired CA957022A (en) | 1971-06-09 | 1972-05-16 | Integrated circuit decoder responsive to two sequential tones with group call provisions |
Country Status (6)
Country | Link |
---|---|
US (1) | US3686635A (en) |
JP (1) | JPS5317011B1 (en) |
AU (1) | AU431688B2 (en) |
CA (1) | CA957022A (en) |
GB (1) | GB1354854A (en) |
HK (1) | HK37077A (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3832494A (en) * | 1970-06-10 | 1974-08-27 | Control Data Corp | Signal multiplexer and demultiplexer |
USRE32365E (en) * | 1975-05-22 | 1987-03-03 | Sanders Associates, Inc. | Precessing display pager |
US4181893A (en) * | 1975-06-26 | 1980-01-01 | Motorola, Inc. | Battery saver for a tone coded signalling system |
US4370753A (en) * | 1975-06-26 | 1983-01-25 | Motorola, Inc. | Battery saver for a tone coded signalling system |
US4101873A (en) * | 1976-01-26 | 1978-07-18 | Benjamin Ernest Anderson | Device to locate commonly misplaced objects |
US4385398A (en) * | 1979-06-07 | 1983-05-24 | Keith H. Wycoff | Selective call communication receiver |
US4796025A (en) * | 1985-06-04 | 1989-01-03 | Simplex Time Recorder Co. | Monitor/control communication net with intelligent peripherals |
US4755792A (en) * | 1985-06-13 | 1988-07-05 | Black & Decker Inc. | Security control system |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3597690A (en) * | 1967-09-11 | 1971-08-03 | Keith H Wycoff | Tone control circuit having a frequency-controllable filter |
US3581283A (en) * | 1968-04-30 | 1971-05-25 | Ledex Inc | Tone decoder responsive to combined tones |
-
1971
- 1971-06-09 US US151460A patent/US3686635A/en not_active Expired - Lifetime
-
1972
- 1972-05-16 CA CA142,264A patent/CA957022A/en not_active Expired
- 1972-05-25 GB GB2478272A patent/GB1354854A/en not_active Expired
- 1972-06-06 AU AU43125/72A patent/AU431688B2/en not_active Expired
- 1972-06-08 JP JP5730972A patent/JPS5317011B1/ja active Pending
-
1977
- 1977-07-14 HK HK370/77A patent/HK37077A/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE2228205B2 (en) | 1975-07-17 |
GB1354854A (en) | 1974-06-05 |
AU431688B2 (en) | 1973-02-01 |
JPS5317011B1 (en) | 1978-06-05 |
AU4312572A (en) | 1973-02-01 |
US3686635A (en) | 1972-08-22 |
HK37077A (en) | 1977-07-22 |
DE2228205A1 (en) | 1973-01-11 |
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