GB2026746B - Transmission systems - Google Patents
Transmission systemsInfo
- Publication number
- GB2026746B GB2026746B GB7925976A GB7925976A GB2026746B GB 2026746 B GB2026746 B GB 2026746B GB 7925976 A GB7925976 A GB 7925976A GB 7925976 A GB7925976 A GB 7925976A GB 2026746 B GB2026746 B GB 2026746B
- Authority
- GB
- United Kingdom
- Prior art keywords
- transmission systems
- systems
- transmission
- 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
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/016—Personal emergency signalling and security systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/03—Constructional details, e.g. casings, housings
- H04B1/034—Portable transmitters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Transmitters (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7830977 | 1978-07-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2026746A GB2026746A (en) | 1980-02-06 |
GB2026746B true GB2026746B (en) | 1982-09-08 |
Family
ID=10498639
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7925976A Expired GB2026746B (en) | 1978-07-25 | 1979-07-25 | Transmission systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2026746B (en) |
-
1979
- 1979-07-25 GB GB7925976A patent/GB2026746B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2026746A (en) | 1980-02-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |