JPH03189986A - Car stereo - Google Patents

Abstract

PURPOSE:To obtain the car stereo capable of informing a function of a switch in voice only by putting a finger on it by providing a complex type switch having a sensor system for its upper layer and a push-button system for its lower layer and providing a function of informing the function of the push- button switch of the lower layer in voice upon placing of a finger on the sensor switch of the upper layer. CONSTITUTION:The complex type switch 13 of the two-layer system consisting of the upper layer sensor and lower layer push-button systems is set up, and when a finger is put on one switch 13 of the complex type switch, an infrared ray emitted from a light emitting element 4 is intercepted by the finger not to reach a light receiving element 10, and also an infrared ray of a light emitting element 5 does not reach a light receiving element 12 as well. Then, based on information obtained from each light receiving system, a switch is decided by a microcomputer 14, and a function of this switch is sent by an audio signal to a main audio block 15 to inform the operator in voice. By this method, the car stereo whose switch function can be recognized without looking at an operating panel can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a car stereo that informs the function of a switch by sound without directly looking at the switch itself.

[Conventional technology]

Conventional devices include those shown above. This consists of two touch panel switches in which a plurality of light-emitting elements and a plurality of light-receiving elements that receive future light beams are arranged so as to face each other around the display screen. The arrangement interval between the light emitting element and the light receiving element of the touch panel switch is narrower than that of the other touch panel switch arranged on the display screen side.

[Problem to be solved by the invention]

An object of the present invention is to provide a car stereo system that notifies the user of the switch function by voice just by placing a finger on the car stereo, without having to take the trouble to look at the operation surface of the car stereo.

[Means to solve the problem]

In order to achieve the above object, a two-layer type switch is set, with a sensor type switch on the upper layer and a push button type switch on the lower layer, and when a finger is brought to the switch, the sensor senses the switch. The information is sent to a microcomputer. A microcomputer determines the functionality of the underlying pushbutton switch.

I made it audible.

[Effect]

The vertical and horizontal rays have different times,
By sending them alternately, they can be placed on the same surface.

Therefore, the intersection of the light beams can be brought as close as possible to the switch surface, and even if your finger is inserted at a somewhat diagonal angle, no malfunction will occur.

〔Example〕

FIG. 1 shows the operation surface of a car stereo incorporating a switch system showing one embodiment of the present invention.

1 to 6 are infrared light emitting elements, and 7 to 12 are infrared light receiving elements. If a finger is placed on one of the composite switches 13, the infrared rays emitted from the light emitting element 4 will be blocked by the finger and will not reach the light receiving element 10. and,
The infrared rays of the light emitting element 5 also no longer reach the light receiving element 12.

FIG. 2 is a system block diagram of this embodiment.

The microcomputer 14 determines the switch based on information obtained from each light receiving system. The function of the switch is sent as an audio signal to the main audio block, and is notified by voice.

〔Effect of the invention〕

According to the present invention, the function of a switch can be known without looking at the operation surface. Furthermore, malfunctions can be eliminated.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing the operation surface of a car stereo incorporating a switch system according to an embodiment of the present invention, and FIG. 2 is a system block diagram of this embodiment. 1-6...Infrared light emitting element, 7-12...Infrared light receiving element, 13...One of the compound switches, 14...Microcomputer, 15...Car stereo audio block.

Claims (1)

[Claims] 1. It is a two-layer type, with a sensor type switch on the upper layer and a push button type switch on the lower layer.If you place your finger on the sensor type switch on the upper layer, you will be notified by voice of the function of the push button type switch on the lower layer. A car stereo that is characterized by its many functions.