GB1326123A - Road condition broadcasting - Google Patents
Road condition broadcastingInfo
- Publication number
- GB1326123A GB1326123A GB2481671A GB2481671A GB1326123A GB 1326123 A GB1326123 A GB 1326123A GB 2481671 A GB2481671 A GB 2481671A GB 2481671 A GB2481671 A GB 2481671A GB 1326123 A GB1326123 A GB 1326123A
- Authority
- GB
- United Kingdom
- Prior art keywords
- occasional
- pilot tone
- stages
- road condition
- 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
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/091—Traffic information broadcasting
- G08G1/094—Hardware aspects; Signal processing or signal properties, e.g. frequency bands
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/08—Transmission systems not characterised by the medium used for transmission characterised by the use of a sub-carrier
Abstract
1326123 Radio systems INTERNATIONAL STANDARD ELECTRIC CORP 19 April 1971 [21 March 1970] 24816/71 Heading H4L In an arrangement for occasional transmission of information on road conditions over a radio channel in which the transmission normally includes a pilot tone, the pilot tone is suppressed during the occasional transmissions so that receivers equipped with means for recognition of the reception of the carrier without a concurrent pilot tone may switch on the otherwise disabled audio stages, or apply the demodulated occasional program instead of some other program material to such stages.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702013659 DE2013659A1 (en) | 1970-03-21 | 1970-03-21 | Process and facilities for the implementation of a unidirectional traffic warning radio |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1326123A true GB1326123A (en) | 1973-08-08 |
Family
ID=5765875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2481671A Expired GB1326123A (en) | 1970-03-21 | 1971-04-19 | Road condition broadcasting |
Country Status (9)
Country | Link |
---|---|
AT (1) | AT315245B (en) |
BE (1) | BE764597A (en) |
CH (1) | CH556581A (en) |
DE (1) | DE2013659A1 (en) |
ES (1) | ES389339A1 (en) |
FR (1) | FR2083479B1 (en) |
GB (1) | GB1326123A (en) |
NL (1) | NL7103614A (en) |
SE (1) | SE371728B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60251724A (en) * | 1984-05-29 | 1985-12-12 | Pioneer Electronic Corp | Receiver for identifying program |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1125864A (en) * | 1966-06-15 | 1968-09-05 | Philips Electronic Associated | Improvements in or relating to radio receivers |
-
1970
- 1970-03-21 DE DE19702013659 patent/DE2013659A1/en active Pending
- 1970-09-02 AT AT795370A patent/AT315245B/en not_active IP Right Cessation
-
1971
- 1971-03-18 NL NL7103614A patent/NL7103614A/xx unknown
- 1971-03-18 ES ES389339A patent/ES389339A1/en not_active Expired
- 1971-03-18 CH CH402571A patent/CH556581A/en not_active IP Right Cessation
- 1971-03-19 FR FR7109743A patent/FR2083479B1/fr not_active Expired
- 1971-03-22 SE SE365671A patent/SE371728B/xx unknown
- 1971-03-22 BE BE764597A patent/BE764597A/en unknown
- 1971-04-19 GB GB2481671A patent/GB1326123A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
SE371728B (en) | 1974-11-25 |
ES389339A1 (en) | 1973-06-01 |
CH556581A (en) | 1974-11-29 |
BE764597A (en) | 1971-09-22 |
FR2083479B1 (en) | 1975-10-31 |
AT315245B (en) | 1974-05-10 |
FR2083479A1 (en) | 1971-12-17 |
NL7103614A (en) | 1971-09-23 |
DE2013659A1 (en) | 1971-10-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |