FR2495405A1 - DEVICE FOR SELECTING AND VISUALIZING ALPHANUMERIC IDENTIFICATION CHARACTERS OF TRANSMITTERS IN A BROADCASTING RECEIVER - Google Patents

Abstract

This device comprises a tuning button 3 with magnetic detent which can be transformed into a rotary selector by pressing an electric button 8. By bringing the button to a given angular position and pressing button 8, the alphanumeric sign appears as well. selected in a display segment 5. Another key 9 is used to shift the alphanumeric sign thus stored and displayed by one box to allow selection of the next sign. A key 10 loads the displayed signs into a memory. Then, each time one of the keys of the keypad 11 for pre-selection of the stations is pressed, the symbol assigned to the transmitter thus memorized and displayed appears on segment 5. Application to radio broadcast receptions with modulation of frequency. (CF DRAWING IN BOPI)

Description

The present invention relates to a device for

  introduce and visualize alphanumeric characters of i-

  identification of transmitters in a broadcast receiver

  whose reception part comprises a tuning button, a preset station keypad, a control unit

  programmable memories and memory with a memory key.

and a display device.

  Broadcasting receivers are known in the

  which the display device visualizing the received station

  allows the digital display of the frequency (frequency

  in addition to or in replacement of the usual

  tuel on dial. In FM receivers

  which are currently customary, it is not possible to

  the names of the stations received on the scale because, in

  the short range of transmitters with frequency modulations

  these, the same carrier frequency can be attributed to several

  transmitters located in different receiving regions.

  It is therefore recommended to equip the receivers with a

  identification of alphanumeric transmitters which

  can be modified as needed. This is how we

  already have receivers in which the identification of

  transmitters can be done using alphanumeric

  which appear on a display device during

  that a transmitting station has been selected, these characters

  before being introduced into the receiving

  his user. It is then expected that the display device

  display the name of the received station or the abbreviation

  of this name. In devices of this kind, it is born

  the receiving part is connected to a control and programmable memory unit and that the frequency

  carrier is associated with a device for identifying the transmitter

  tor. In devices of this kind known until now,

  it is intended for the selection of the addresses of the memory (let-

  A to Z. digits from 0 to 9) a keyboard with indications

  individual alphanumeric characters. The

  requires at least a number of keys corresponding to the alphabet (A to Z) and the series of numbers 0 to 9. It is

  difficult to house such a keyboard on the front of a reception

  modem (tuner) in addition to the keys already present.

  This is especially so when it is a tuner of high

  particularly low (eg from a height of about

  5 cm). Moreover, so many key-touches tend to

  introduce a risk of confusion for the user. In-

  such a large keyboard represents a complication

  This is especially important considering the fact that a keyboard with at least 37 keys is used almost exclusively to introduce transmitting stations once. These already known devices for introducing symbols

  identification of transmitters are seriously

  in the sense that there is not enough space available to house a large-area keyboard in a modern flat receiver and because they have a large number of components; they are even unachievable, for reasons of

  lack of space, in the case of certain forms of construction

receptors.

  The object of the invention is therefore to provide a device for

  introduction and visualization of alphanumeric characters

  for the identification of transmitters of a broadcast receiver which eliminates the disadvantages described above without introducing limitations in the construction of the receivers.

  According to the invention, this problem is solved in a

  Receptor of the kind defined at the beginning of this memo and which is characterized in that the tuning knob has several notched positions and is associated with two electric keys, in that by operating at least one key and turning the knob. agree the alphanumeric characters present in

  the programmable control unit (microprocessor) can

  selected and entered into a non-volatile memory by means of the memory key and that by operating

  a pre-selection key of the transmitting stations the characters

  assigned alphanumeric areas & station identification

  can be viewed on a display device.

  The advantages of the device according to the invention intended to introduce an alphanumeric name or symbol into a receiving station are obvious since it is essentially used for the introduction of a maneuvering element which is already present on

the post.

  Other features and advantages of the invention

  will appear in the course of the description which follows. the

  attached drawings, given by way of example only; 1 is a simplified perspective view of a

  broadcasting receiver and a device for the in-

  troduction and display of alphanumeric characters identifying issuers; and

  FIG. 2 is a simplified perspective view

  a mechanism associated with the manual latch button

gnétique.

  In FIG. 1, there is shown a radio receiver

  diffusion which is embedded in a flat box 1. Sure the front face 2 of the receiver, are mounted a tuning button 3, and a

  4-screen display divided into several display segments.

  The first segment 5 is provided to display the symbol used to identify the transmitter, the second segment 6 to

  display the address of the memory to which the station transmits

  this is memorized and the third segment 7 is used for display

  digital frequency, (carrier frequency). Both are

  8 and 9, which are combined, at least

  the button 3, serve, on the one hand, to trans-

  form this button into a single button selector and other

  on the other hand, to ensure that one box of alphanumeric

  selected countries. It should be noted that the advertising segment

  chage 5 preferably comprises four of these boxes. In

  With a touch of memorization 10, we introduce all the

  thus selected in a memory. A keyboard 11 makes it possible to select the carrier frequency, which has in most cases been stored before the alphanumeric symbol assigned to the transmitter is entered in memory, and to display

  at the same time, the address number of the memory and possibly

  to also display the frequency in figures.

  To assign a symbol to a transmitter on which the receiver has been manually set, by search or by

  viewing a frequency information previously

  mortified, one. First, the key 8 is used for switching the function of the tuning knob. At the same time, by turning this knob in one direction or the other, you will successively display the letters of the alphabet and the numbers 0 to 9 and make them appear in uppercase or in numbers in the first display segment. 5. As soon as the desired character is introduced, the box is shifted by pressing the second key 9 and then the next character to be input can be selected. As soon as all the characters

  alphanumeric data that are necessary or desirable for a sym-

  given issuer identification bole were introduced and

  displayed, this symbol assigned to the status key is memorized.

  desired, with the frequency information previously

  entered by pressing the memory key 10.

  In Fig.2, there is shown in simplified form

  a mechanism associated with the tuning knob 3 with magnetic detent

  that, the tuning-button itself not being shown in this Figure. A shaft 12 on which the tuning knob can

  to be fitted and which is rotated in the frame 13 of the

  It carries a multi-pole detent disc 14 which is fitted on this shaft. A permanent magnet 15 is combined with the notch disc on one side of this disc so that the disc can rotate only step by step. On the other side of

  disc is an optical coupler composed of a diode elec-

  16 and a photodiode 17. The alphanumeric characters encoded can be selected by means of the

  pulses of the optical coupler, via a single

  programmable control unit, such as a microprocessor.

Claims (4)

  1 - Device for introducing and visualizing   alphanumeric characters identifying an issuer in   a broadcasting receiving station whose receiving part   it comprises a tuning button (3) a keyboard (11) for preselecting transmitting stations, a control unit and a programmable memory unit, provided with a memory button (10), this device being characterized in that the tuning knob (3) has several notched positions and is associated with two electric keys (8, 9), and that by operating at least one key (8) and turning the knob. (3) ,   the alphanumeric characters present in the communication unit   Programmable memory (microprocessor) can be selected and entered into a non-volatile memory by means of the memory key (10) and by operating a key (11).   pre-selection of transmitting stations the alpha-   numbers assigned to the identification of the stations may   be viewed on a display device (5).   2 - Device according to claim 1, characterized   in that one (8) of the keys is used to give the access button   cord the single-button rotary selector function   alphanumeric characters while the other   key (9) is used to offset the boxes in a segment of af-   alphanumeric map (5) preferably containing four boxes.   3 - Device according to any one of the claims   1 and 2, characterized in that the tuning button (3) is   associated a multiple blade detent disk (14) on the what is a magnet (15).   4 - Device according to any one of the claims   1 to 3, characterized in that the number of notches of the   tone is different from the number of alphanumeric characters can be chosen.