ES443675A1 - Radio receiver - Google Patents
Radio receiverInfo
- Publication number
- ES443675A1 ES443675A1 ES443675A ES443675A ES443675A1 ES 443675 A1 ES443675 A1 ES 443675A1 ES 443675 A ES443675 A ES 443675A ES 443675 A ES443675 A ES 443675A ES 443675 A1 ES443675 A1 ES 443675A1
- Authority
- ES
- Spain
- Prior art keywords
- signal
- signal output
- appears
- secondary signal
- output
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Circuits Of Receivers In General (AREA)
- Radio Relay Systems (AREA)
- Transceivers (AREA)
Abstract
A radio receiver, with a rf (radio frequency) reception section tunable to a carrier wave, an if (intermediate frequency) amplifier, demodulation and separation devices to demodulate and separate tone signals and transmitter identification signals transmitted with the carrier wave, with a transmission device af whose disconnection and change is controlled by a switching storage and, if a marked message is received, connects the transmission device af to the output of the demodulation device for the carrier wave, with an activation circuit to activate the switching storage, and with signal outputs in the signal separation devices in which a secondary signal depending on the identification signal of the transmitter appears and which are connected to the inputs of the circuit of activation, characterized in that the switching storage is a flip-flop (20), because a p The first activation circuit input (19) is connected to a first signal output (10), where a first secondary signal (SK) appears if the transmitter identification signal is received with a level that exceeds the threshold of a first threshold switch (12) located at the signal output, because a second input of the activation switch is connected to a second signal output (14), in which a second secondary signal (DK) appears if a signal is received Identification modulated in the transmitter identification signal with a level that exceeds the threshold of a second threshold switch (18) located at the signal output, because the branch of the first signal output (10) contains a device (13) to delay the connection of the secondary signal of said signal output for a time that is greater than the delay of connection of the secondary signal in the second signal output (14), and because the activation circuit n is designed to reset the switching storage to the "off" state if a secondary signal appears only on the first signal output, and to activate it to the "on" state if a secondary signal appears on the first and second signal outputs, leaving it in the same state if a secondary signal does not appear or a secondary signal appears only at the second signal output. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742460983 DE2460983A1 (en) | 1974-12-21 | 1974-12-21 | RADIO RECEIVER |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES443675A1 true ES443675A1 (en) | 1977-05-01 |
Family
ID=5934349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES443675A Expired ES443675A1 (en) | 1974-12-21 | 1975-12-19 | Radio receiver |
Country Status (10)
| Country | Link |
|---|---|
| AT (1) | ATA939275A (en) |
| BE (1) | BE836772R (en) |
| CH (1) | CH600695A5 (en) |
| DE (1) | DE2460983A1 (en) |
| DK (1) | DK579375A (en) |
| ES (1) | ES443675A1 (en) |
| GB (1) | GB1528189A (en) |
| NL (1) | NL7514563A (en) |
| NO (1) | NO754220L (en) |
| SE (1) | SE401763B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2544508C3 (en) * | 1975-10-04 | 1983-11-03 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Circuit arrangement, in particular for a radio receiver |
| DE2824006C3 (en) * | 1978-06-01 | 1981-04-09 | Audi Nsu Auto Union Ag, 7107 Neckarsulm | Search aid circuit in a radio receiver for carrier frequency tuning of carrier frequencies to which a pilot tone is applied |
| US4420658A (en) * | 1981-05-04 | 1983-12-13 | Hazeltine Corporation | Multiple tone signal system |
| DE3121034C2 (en) * | 1981-05-27 | 1987-01-02 | Blaupunkt-Werke Gmbh, 3200 Hildesheim | FM receiver |
| DE3144289A1 (en) * | 1981-11-07 | 1983-05-19 | Blaupunkt-Werke Gmbh, 3200 Hildesheim | BROADCAST RECEIVER |
| DE3211813A1 (en) * | 1982-03-31 | 1983-10-13 | Blaupunkt-Werke Gmbh, 3200 Hildesheim | CIRCUIT FOR CONTROLLING THE READINESS OF A MUTED WARNING RADIO RECEIVER |
| DE3323524A1 (en) * | 1983-06-30 | 1985-01-10 | Blaupunkt-Werke Gmbh, 3200 Hildesheim | CAR RECEIVER |
-
1974
- 1974-12-21 DE DE19742460983 patent/DE2460983A1/en active Pending
-
1975
- 1975-12-11 AT AT939275A patent/ATA939275A/en not_active Application Discontinuation
- 1975-12-12 NO NO754220A patent/NO754220L/no unknown
- 1975-12-15 NL NL7514563A patent/NL7514563A/en not_active Application Discontinuation
- 1975-12-16 CH CH1626375A patent/CH600695A5/xx not_active IP Right Cessation
- 1975-12-17 SE SE7514245A patent/SE401763B/en unknown
- 1975-12-18 BE BE2054728A patent/BE836772R/en active
- 1975-12-18 GB GB51874/75A patent/GB1528189A/en not_active Expired
- 1975-12-19 ES ES443675A patent/ES443675A1/en not_active Expired
- 1975-12-19 DK DK579375A patent/DK579375A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DK579375A (en) | 1976-06-22 |
| NL7514563A (en) | 1976-06-23 |
| DE2460983A1 (en) | 1976-07-01 |
| NO754220L (en) | 1976-06-22 |
| SE401763B (en) | 1978-05-22 |
| SE7514245L (en) | 1976-06-22 |
| ATA939275A (en) | 1980-02-15 |
| BE836772R (en) | 1976-06-18 |
| GB1528189A (en) | 1978-10-11 |
| CH600695A5 (en) | 1978-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES443675A1 (en) | Radio receiver | |
| KR910005602A (en) | RF transmission / reception circuit of mobile communication equipment | |
| GB1152397A (en) | Cue Signal Communication System | |
| ES465050A1 (en) | Television receiver having a demodulator circuit for demodulating a television signal modulated on a carrier | |
| ES452237A1 (en) | Radioreceiver switching | |
| JPS6457832A (en) | Switching device for transmission line | |
| GB845847A (en) | Radio diversity receiving system | |
| GB547737A (en) | Improvements in or relating to radio receivers | |
| DE3068626D1 (en) | Circuit for the demodulation of a signal modulated by digital information and receiver comprising such a circuit | |
| JPS56144643A (en) | Antenna common-use type transmitter and receiver | |
| JPS5620353A (en) | Radio transmitter-receiver | |
| JPS572145A (en) | Radio transmission system | |
| JPS5577246A (en) | Radio communication system | |
| SE8003557L (en) | The intermediate frequency detection circuit | |
| JPS57188147A (en) | Radio transmitter and receiver | |
| JPS57186815A (en) | Amplitude modulation radio receiver | |
| GB935694A (en) | Radar system | |
| JPS542006A (en) | Receiver | |
| JPS5678239A (en) | Tuner | |
| SU379218A1 (en) | Radar station | |
| KR910002149A (en) | Receiving start and transmission end sharing device in wireless communication device | |
| JPS5579541A (en) | Mobile radio equipment | |
| JPS55132137A (en) | Multiplex radio repeater | |
| CS210402B1 (en) | Transmitting device | |
| ES253712A1 (en) | Receiver for color television signals with slope-related synchronous detectors |