GB1396600A - Selective signalling apparatus with storage of call signals - Google Patents
Selective signalling apparatus with storage of call signalsInfo
- Publication number
- GB1396600A GB1396600A GB5491472A GB5491472A GB1396600A GB 1396600 A GB1396600 A GB 1396600A GB 5491472 A GB5491472 A GB 5491472A GB 5491472 A GB5491472 A GB 5491472A GB 1396600 A GB1396600 A GB 1396600A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gate
- input
- tone
- output
- inverter
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
- G08B3/1008—Personal calling arrangements or devices, i.e. paging systems
- G08B3/1016—Personal calling arrangements or devices, i.e. paging systems using wireless transmission
- G08B3/1025—Paging receivers with audible signalling details
- G08B3/105—Paging receivers with audible signalling details with call or message storage means
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US20507171A | 1971-12-06 | 1971-12-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1396600A true GB1396600A (en) | 1975-06-04 |
Family
ID=22760669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5491472A Expired GB1396600A (en) | 1971-12-06 | 1972-11-28 | Selective signalling apparatus with storage of call signals |
Country Status (7)
Country | Link |
---|---|
US (1) | US3742481A (de) |
JP (1) | JPS5118762B2 (de) |
AR (1) | AR195575A1 (de) |
CA (1) | CA1002117A (de) |
DE (1) | DE2259767B2 (de) |
FR (1) | FR2162499B1 (de) |
GB (1) | GB1396600A (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4010460A (en) * | 1974-12-12 | 1977-03-01 | Bell & Howell Company | Alerting system with memory |
US4010461A (en) * | 1975-01-17 | 1977-03-01 | Bell & Howell Company | Alerting system with dual-address memory |
US3992698A (en) * | 1975-04-15 | 1976-11-16 | Westinghouse Electric Corporation | Fail-safe speed command signal decoder |
US4145684A (en) * | 1976-05-28 | 1979-03-20 | Bell & Howell Company | Alerting system with dual-address memory |
US4087793A (en) * | 1976-10-28 | 1978-05-02 | Motorola, Inc. | Digital electronic control and switching arrangement |
US4072903A (en) * | 1976-12-10 | 1978-02-07 | General Electric Company | Storage circuit for paging radio receivers |
JPS57101996A (en) * | 1980-12-16 | 1982-06-24 | Nippon Electric Co | Call indication circuit |
US4419668A (en) * | 1981-09-25 | 1983-12-06 | Motorola, Inc. | Combined tone only and tone voice multiple alert pager |
US4644351A (en) * | 1984-05-08 | 1987-02-17 | Motorola, Inc. | Two way personal message system with extended coverage |
EP0594459B1 (de) * | 1992-10-23 | 1998-02-25 | Nec Corporation | Personenfunkrufempfänger |
JP2665204B2 (ja) * | 1995-06-20 | 1997-10-22 | 静岡日本電気株式会社 | 無線選択呼出受信機 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3510864A (en) * | 1967-08-17 | 1970-05-05 | Ramsey H Mcdonald | Paging encoder |
-
1971
- 1971-12-06 US US00205071A patent/US3742481A/en not_active Expired - Lifetime
-
1972
- 1972-11-21 CA CA157,082A patent/CA1002117A/en not_active Expired
- 1972-11-28 GB GB5491472A patent/GB1396600A/en not_active Expired
- 1972-11-28 AR AR245362A patent/AR195575A1/es active
- 1972-12-05 JP JP47121939A patent/JPS5118762B2/ja not_active Expired
- 1972-12-06 FR FR7243412A patent/FR2162499B1/fr not_active Expired
- 1972-12-06 DE DE2259767A patent/DE2259767B2/de not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
AR195575A1 (es) | 1973-10-23 |
CA1002117A (en) | 1976-12-21 |
DE2259767A1 (de) | 1973-06-20 |
JPS5118762B2 (de) | 1976-06-12 |
FR2162499B1 (de) | 1976-04-23 |
JPS4866305A (de) | 1973-09-11 |
US3742481A (en) | 1973-06-26 |
FR2162499A1 (de) | 1973-07-20 |
AU4946972A (en) | 1974-05-30 |
DE2259767B2 (de) | 1973-10-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |