FR2732175A1 - METHOD FOR RECORDING TRAFFIC INFORMATION IN A RADIO RECEIVER - Google Patents

Abstract

Method of recording a traffic message in a radio receiver. The reproduction unit of the radio receiver comprising the LF stage (8) and the loudspeaker (9) is connected by a signal source switch (7) to other LF signal sources (10, 11, 12 ) comprising a unit for recording traffic messages (10). The radio receiver display (14) displays the signal source, active, by a switch (15) in a signal generator circuit. By ordering a change of transmitter, in the case of displaying one of the other signal sources, temporarily, instead of the active signal source of the set transmitter, and upon receipt of a characteristic message, this characteristic is displayed alternately with the set transmitter or is displayed alone.

Description

"Method for recording traffic information in

  The present invention relates to a method for recording traffic messages in a radio receiver comprising a display and a recording unit which can receive a certain number of traffic information with a message characteristic of the transmitter set. and the reproduction unit of which can be connected by a low frequency signal source switch, as desired, either to the LF stage or to

  the recording unit, or to other sources of

  low frequency signals, the source of connected signals being

displayed in the display.

  The invention also relates to a radio receiver

  for the implementation of the method, the reproduction unit of which can be connected by a signal source switch to a recording unit for traffic messages and the display of which displays the active signal sources and, when the start of a new transmitter change, a first switch

  transmitter not yet set can be displayed.

  Such radios are known among others.

  very under the name "car radio Blaupunkt Stockholm

  RCR 42 ". This car radio records information or

  circulation wise according to the process mentioned above.

  The present invention aims to develop

  this process and for this purpose relates to such a process characterized

  risked that when displaying the connection of one of the other signal sources to the reproduction unit and for simultaneously initiating a change

  transmitter, while recording a traffic message

  lation, this status of the recording unit is displayed from

transient way.

  This process differs from the operation of

  the device according to the state of the art.

  This process offers the advantage that in case of change

  unintentional transfer from one transmitter to another

  tre, it is indicated if, at this moment, there is a traffic message while another source of signals

is connected to the reading unit.

  According to other characteristics: - the display is made in the display;

  - the display is done acoustically.

  These characteristics correspond to

  laughing to display the recording of traffic messages

  culation. According to another characteristic, the change of transmitter, set, is done automatically at the end of the recording of the operating time. This process combines in a particularly simple way the desired change of transmitter and the recording of a traffic message. According to another characteristic of the process, the end of the change of transmitter started and the stop of the recording in progress, are controlled by a new action on the key; these characteristics give the

  priority to break the current recording.

  According to other characteristics of the invention

  tion: - the duration between the first actuation of the key and the new actuation of the key, is measured in a time delay element and, in the event of a predetermined set point being exceeded downwards, the recording remains incomplete from the traffic message is deleted; - the erasure is blocked if the transmitter that

  quits and the new transmitter selected has the same characteristics.

tick (RDS / PI).

  The invention also relates to a radio receiver

  diophonic for the implementation of the method, characterized

  in that an exit from a radio traffic stage indicates

  as for the reception of a message characteristic, is linked to the control input of another switch mounted upstream of the input of the first switch provided for displaying the adjusted transmitter, and in that a input of the second switch is connected to the sign generator for displaying the set transmitter, and the second input of the second switch is connected to a sign generator

  to display a message characteristic.

  These circuits allow a particularly simple implementation of the method according to the invention. A radio receiver corresponding to an exemplary embodiment is shown in the drawings and will

  described below in more detail.

So:

  - Figure 1 is a block diagram of the

  main positions of a radio receiver, used for implementing the method of the invention, - Figure 2 is a block diagram of the control unit shown in Figure 1, - Figure 3 is a diagram blocks of a

erasure facility.

  The radio traffic receiver,

  tuned by the tuner 2, receives the signals by the antenna 1 according to figure 1. The signals are amplified in

  the HF 3 stage and are converted to the intermediate frequency

  diary. At the output of stage FI 4, there is the modulation of the transmitter set as an MPX signal. From this MPX signal, the auxiliary radio carrier at 57 kHz is supplied in the radio traffic stage 5. The auxiliary carrier is

  demodulated to exploit the references.

  The low frequency useful signal of the traffic transmitter contained in the MPX signal is transmitted by a LF stage 6, a source switch 7 and a LF power stage 8 to be transformed into an audible signal

through the speakers 9.

  In parallel, the useful low-frequency signal is recorded by a recording unit 10 when this is released by the radio traffic stage 5 of the

  makes use of the characteristic.

  Next to stage BF 6, the source switch

  these 7 is also connected to the outputs of the recording unit 10, to the outputs of a cassette player

  11 and a CD disc player 12. The radio stage of circu-

  lation 5 is designed either as a decoder for frequencies

  features, either as a decoder for RDS data.

  To transmit the results of the operation, the circulation radio stage 5 is also connected to the tuner 2. The tuner 2 comprises several station keys indicated under the reference 13. It may also include a button for continuously searching for stations and other adjustment means suitable for changing the transmitter. Finally, the tuner 2 comprises a means

  display 14 to display the frequency or the transmitter.

  For the implementation of the method according to the invention, as shown in FIG. 2, the input of the display 14 can be connected by a first switch, as desired, with the output of a sign generator 16

  indicating cassette mode. The other entry of the first com-

  mutator 15 is connected to the output of a second switch 17, one input of which is connected by a sign generator 18 to recognize messages, while the second input

  of the second switch 17 is connected to a signal generator

  gen 19 for the frequency set or for the name of the set

  frozen. The frequency displayed corresponds to the control status of one of the station keys 13A ... 13C which sets the frequency of the mixer oscillator 21 by

  through the selector switch 20.

  In cassette mode, the first switch 15

  normally occupies its first position on the left at the end

  gure 2. When, in this operating mode,

  one of the station keys 13, a key position sensor 22 integrated into each of the station keys for three different key positions, leaves its

  zero rest position and signals, in its first posi-

  tion of work I, the implementation of a change of transmitter. The detector output signal switches the first switch 15 to its second position shown on the right in FIG. 2. The display 14 thus displays the frequency or the name of the transmitter associated with the station key, or even the presence of '' a traffic message

  and its registration. The second switch 17 is controlled

  dice via the radio traffic stage 5. As soon as this stage

  recognizes a characteristic announcement, the second switch

  tor 17 moves to its second position shown on the left in FIG. 2 to reproduce the indication of the advertisement and record it. Switching can also be done from

intermittently.

  If the listener does not want to interrupt the recording, he avoids repeating the command of the new station button 13. If, on the other hand, the listener considers that the change of transmitter has priority, then

  he must press the station button again to

  send the key position sensor 22 to its second working position II. In this case, the recording of

  still incomplete traffic information may also

  cannot be deleted. For this, please refer to the explanations

  tions given about figure 3.

  In the exemplary embodiment as shown

  the characteristic of a message is moreover recognized

  in a timer stage 23 which performs automatic-

  the new choice of station, once it has been recognized

  message erased; this means that this floor does not

  switches the station button only at this time in its

this working position.

  At this time, the oscillator 21 adjusts to the new frequency displayed in the display, if necessary by changing the announcement characteristic if the new transmitter also sends a message at this time.

circulation.

  In the meantime, the newly tuned transmitter

  belong to a chain of transmitters which issues the same pro-

  gram than that of the previously set transmitter. The transmitters of such a chain of transmitters are distributed throughout a country because the range of FM transmitters is limited. If the radio transmitters in circulation, which can

  be selected by the selection keys, are transmits

  RDS sensors, then we can stop the erasure of the recording which had remained incomplete until then, when priority setting the second working position of the key position sensor 22, if a comparison of the

  PI characteristic of the transmitter you are leaving is compared

  to that of the newly tuned transmitter and if the com-

  parison shows that there is agreement. Registration of

  traffic message then continues.

  Figure 3 shows the necessary circuit stages

  saires for this purpose. The duration of the transient time between the first and the second working position is measured in a timing circuit 24. If the duration is less than the residence time of the time element 24, the erasure of the information recorded last place is started

  in the recording unit 10. If on the other hand the floor ra-

  dio circulation RDS 5 recognizes a correspondence in the characteristics of the program of the transmitter which has just been set and in those of the transmitter which is exited, the erasing order provided by the time delay element

  24 is blocked by blocking stage 25.

NOMENCLATURE

  1 antenna 2 tuner 3 HF stage 4 FI stage traffic radio stage 6 BF input stage 7 source switch 8 BF output stage 9 speaker recording unit 11 cassette player 12 CD disc player 13 station button 14 display, 17 switch 16, 18, 19 signal generators selector switch 21 mixer oscillator 22 key position sensor 23 delay stage 24 time element blocking stage

Claims (7)

R E V E N D I C A T IONS   1) Method for recording traffic messages in a radio receiver comprising a display and a recording unit which can receive a certain number of traffic information with a message characteristic of the set transmitter and including the reproduction unit can be connected by a low frequency signal source switch, as desired, either to the LF stage, or to the recording unit, or to other low frequency signal sources, the connected signal source being displayed in the display, characterized in that, when the connection of one of the   other signal sources (11, 12) to the reproducing unit   tion (8, 9) and for a simultaneous start-up of a change   transmitter control, during the recording of a traffic message, this state of the recording unit (10) is displayed temporarily.   2) Method according to claim 1, character-   that the display is made in the display (14).   3) Method according to claim 1, character-   that the display is done acoustically.   4) Method according to one of claims 1,   2, 3, characterized in that the change of transmitter, re-   frozen, automatically done at the end of the recording operating time.    ) Method according to claims 1, 2 or 3,   characterized in that the end of the transmitter change put   while the recording is in progress,   command by a new action on the key.   6) Method according to claim 5, character-   measured in that the time between the first pressing of the key and the new pressing of the key is measured   in a time delay element (24) and, in the event of   down a predetermined set duration, the recording of the traffic message remained incomplete is deleted.   7) Method according to claim 6, character-   laughed at in that erasure is blocked if the transmitter you are leaving and the new transmitter selected have the same characteristics. tick (RDS / PI).   8) radio receiver for implementing the method according to claim 1, the reproduction unit of which can be connected by a signal source switch (7) to a recording unit (10) for traffic messages and whose display (14) displays the active signal sources (6, 10, 11, 12) and, when a new transmitter change is started, a first switch (15) of the non-transmitter still set can be displayed, characterized in that an output from a radio traffic stage (5) indicating reception of a   message characteristic, is connected to the input of   command of another switch (17) mounted upstream of the input of the first switch (15) provided for the display   of the set transmitter, and that an input of the second   mutator (17) is connected to the sign generator (19) for displaying the set transmitter, and the second input of the   second switch (17) is connected to a signal generator   genes (18) to display a message characteristic.