HK10978A - Switchable frequency tone detector - Google Patents
Switchable frequency tone detectorInfo
- Publication number
- HK10978A HK10978A HK109/78A HK10978A HK10978A HK 10978 A HK10978 A HK 10978A HK 109/78 A HK109/78 A HK 109/78A HK 10978 A HK10978 A HK 10978A HK 10978 A HK10978 A HK 10978A
- Authority
- HK
- Hong Kong
- Prior art keywords
- frequency tone
- tone detector
- switchable frequency
- switchable
- detector
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
- H04W8/24—Transfer of terminal data
- H04W8/245—Transfer of terminal data from a network towards a terminal
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Databases & Information Systems (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Near-Field Transmission Systems (AREA)
- Networks Using Active Elements (AREA)
- Telephone Function (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US405951A US3882466A (en) | 1973-10-12 | 1973-10-12 | Switchable frequency tone detector with electronically controlled code plug and bcd converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| HK10978A true HK10978A (en) | 1978-03-03 |
Family
ID=23605907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HK109/78A HK10978A (en) | 1973-10-12 | 1978-02-23 | Switchable frequency tone detector |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US3882466A (da) |
| JP (1) | JPS5820171B2 (da) |
| AR (1) | AR203310A1 (da) |
| BR (1) | BR7408327D0 (da) |
| CA (1) | CA1016612A (da) |
| DK (1) | DK531974A (da) |
| ES (1) | ES430955A1 (da) |
| FR (1) | FR2247857B1 (da) |
| GB (1) | GB1479176A (da) |
| HK (1) | HK10978A (da) |
| IL (1) | IL45783A (da) |
| NL (1) | NL171517C (da) |
| ZA (1) | ZA746243B (da) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4020449A (en) * | 1974-05-22 | 1977-04-26 | Hitachi, Ltd. | Signal transmitting and receiving device |
| US4019142A (en) * | 1974-08-16 | 1977-04-19 | Wycoff Keith H | Selectively callable receiver operated in accordance with tone characteristics |
| US4001772A (en) * | 1975-07-30 | 1977-01-04 | Truman W. Powell | Coded signaling and control system |
| JPS5366309A (en) * | 1976-11-26 | 1978-06-13 | Nec Corp | Digital type tone signal detector |
| GB1562121A (en) * | 1976-11-26 | 1980-03-05 | Nippon Electric Co | Tone signal detecting circuits |
| JPS584289Y2 (ja) * | 1978-04-18 | 1983-01-25 | 日本電気株式会社 | 表示装置を備える無線選択呼出し受信機 |
| JPS55149545A (en) * | 1979-05-10 | 1980-11-20 | Nec Corp | Receiver for individual selection and call-out |
| US4385398A (en) * | 1979-06-07 | 1983-05-24 | Keith H. Wycoff | Selective call communication receiver |
| US4417246A (en) * | 1979-11-19 | 1983-11-22 | General Electric Company | Paging receiver having a serial code plug |
| US4984219A (en) * | 1989-12-26 | 1991-01-08 | Motorola, Inc. | Method and apparatus for decoding of frequency inversion based scramblers |
| US5533202A (en) * | 1992-11-02 | 1996-07-02 | Zenith Electronics Corporation | Apparatus using a binary coded decimal switch and a programmable logic array for selectively coupling terminals of a controller chip to data bus lines |
| US5481478A (en) * | 1994-06-03 | 1996-01-02 | Palmieri; Herman D. | Broadcast system for a facility |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3670242A (en) * | 1969-12-03 | 1972-06-13 | Lear Siegler Inc | A selective paging receiver and decoder employing an electronic filter means |
| JPS5317010B2 (da) * | 1972-03-23 | 1978-06-05 | ||
| US3766523A (en) * | 1972-10-04 | 1973-10-16 | Motorola Inc | Sequential tone signalling system |
-
1973
- 1973-10-12 US US405951A patent/US3882466A/en not_active Expired - Lifetime
-
1974
- 1974-09-24 CA CA209,880A patent/CA1016612A/en not_active Expired
- 1974-09-30 GB GB42397/74A patent/GB1479176A/en not_active Expired
- 1974-10-01 ZA ZA00746243A patent/ZA746243B/xx unknown
- 1974-10-04 IL IL45783A patent/IL45783A/en unknown
- 1974-10-08 BR BR8327/74A patent/BR7408327D0/pt unknown
- 1974-10-10 AR AR256028A patent/AR203310A1/es active
- 1974-10-10 FR FR7434146A patent/FR2247857B1/fr not_active Expired
- 1974-10-11 NL NLAANVRAGE7413430,A patent/NL171517C/xx not_active IP Right Cessation
- 1974-10-11 ES ES430955A patent/ES430955A1/es not_active Expired
- 1974-10-11 DK DK531974A patent/DK531974A/da not_active Application Discontinuation
- 1974-10-12 JP JP49117630A patent/JPS5820171B2/ja not_active Expired
-
1978
- 1978-02-23 HK HK109/78A patent/HK10978A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BR7408327D0 (pt) | 1975-07-29 |
| DE2448614A1 (de) | 1975-04-30 |
| CA1016612A (en) | 1977-08-30 |
| AR203310A1 (es) | 1975-08-29 |
| JPS5820171B2 (ja) | 1983-04-21 |
| IL45783A0 (en) | 1974-12-31 |
| IL45783A (en) | 1976-10-31 |
| FR2247857B1 (da) | 1983-02-11 |
| NL7413430A (nl) | 1975-04-15 |
| NL171517B (nl) | 1982-11-01 |
| FR2247857A1 (da) | 1975-05-09 |
| DE2448614B2 (de) | 1977-03-03 |
| US3882466A (en) | 1975-05-06 |
| ES430955A1 (es) | 1976-10-16 |
| AU7425874A (en) | 1976-04-15 |
| ZA746243B (en) | 1975-11-26 |
| NL171517C (nl) | 1983-04-05 |
| GB1479176A (en) | 1977-07-06 |
| DK531974A (da) | 1975-06-09 |
| JPS5068001A (da) | 1975-06-07 |
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