JPS6128417Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention is an invention related to a received frequency display device for a tuner of a radio receiver. Traditionally, car radio tuners include electronic tuners and push-button tuners.Either tuners have an operation button and a receiving frequency display section on the radio operation surface, allowing selection. When a station button is pressed, the received frequency stored in that button is displayed in a digital format if the tuner is an electronic tuner, or in an analog format if the tuner is a push-button tuner. Therefore, an operation button and a receiving frequency display section are always required on the radio operation surface, which requires a large area of the radio operation surface. Particularly recently, as shown in Figure 1, when a tape recorder and a tuner are used in combination, the operation buttons for the tape recorder are also provided on the radio operation surface, and the placement of each operation button has been changed in various ways. was subject to restrictions. A is a push-button tuner,
A' is the operation button of the push-button tuner. When the operation button A' is pressed, the pointer mechanism B is activated via a conventional mechanism (not shown) to indicate the frequency value on the receiving frequency display board C. It's getting old. In the electronic tuner, A is a tuning circuit section and C is a digital display section that displays the received frequency, and no pointer mechanism is required.

Therefore, in the present invention, a digital display section is provided inside the operation button of the tuner, so that the radio operation surface can be used effectively.

The present invention will be explained below based on embodiments. FIG. 2 is a front view, and FIG. 3 is a circuit diagram. Reference numeral D denotes a radio operating surface, from which protrude operation buttons 1 for the tape recorder, such as an eject button, a fast forward button, and a rewind button. 2 is a tape cassette insertion slot. A plurality of buttons 3 are arranged horizontally for operating the tuner, and a digital display element 10 is provided inside each button. Therefore,
The receiving frequency is displayed by the array of numbers displayed on each digital display element 10.

Figure 3 is a circuit diagram, and 4 is a front end that includes a buffer circuit 4'.When the tuner operation button 3 corresponding to the desired station is pressed, the frequency of that station is selected, and a part of it is an intermediate frequency increaser. A circuit is connected to a speaker 7 via a width 5 and a low frequency amplification 6. 8 is a programmable frequency divider which divides the frequency selected at the front end into units of frequency value and connects each segment of each digital display element 10 to a driver 9 which is a conversion amplifier that is to emit light.

As described above, according to the present proposal, the operation button 3 of the tuner
Since the digital display element 10 is provided inside the radio, the radio operation surface can be used effectively, unlike the conventional case where the receiving frequency display section is provided in a different position from the button. be done.
This is a useful idea for tuners.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of the conventional device, FIG. 2 is a front view of the present invention, and FIG. 3 is a circuit diagram. In the figure, A is a tuner, 3 is an operation button, and 10 is a digital display element.

Claims (1)

[Scope of utility model registration request] A receiving frequency display device for a tuner that displays the receiving frequency by an array of numbers displayed by digital display elements provided on a plurality of operation buttons.