JP3317729B2 - Automotive audio equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-vehicle acoustic device having a detachable operation section detachable from a device main body.

[0002]

2. Description of the Related Art In general, as a countermeasure for theft of an in-vehicle audio device, a method of removing the in-vehicle audio device from a vehicle side,
The so-called take-away method has been known, et al. But,
This method is very complicated when the user carries the audio device away from the vehicle because the external shape of the device is large. Therefore, when the user only leaves the vehicle for a short period of time, the user often does not carry the audio equipment, which is not suitable for actual use.

[0003] Further, in recent years, equipment has become multifunctional, so that the weight of the equipment has increased. Therefore, carrying the audio equipment becomes more troublesome, and the anti-theft effect is reduced .

[0006] Conventionally, there has been proposed an operation unit attaching / detaching method in which only an operation unit having operation buttons and the like of an apparatus is detached from the apparatus main body. In this method, a detachable operation unit (Detachable Control) is attached to the device body.
Panel) is attached, and when the user moves away from the vehicle body, only the detachable operation unit is removed to disable the operation of the device body.

According to the above method, an excellent anti-theft effect can be ensured simply by carrying a lightweight, compact and portable detachable operation unit. Demand operation unit detachable manner with the advantages such as this tends to increase of various types with respect to size and shape of the removable operating section has been developed.

For example, a large detachable operation unit having the same size as the front panel of an audio device has been proposed.
Such a detachable operation unit can be made inoperable once the user removes the detachable operation unit from the device main body. In addition, no operation button for recognizing the audio device is provided on the front panel of the device main body left on the vehicle side. Such a front panel can camouflage the presence of the device itself. Therefore,
There is no danger of the theft of the device going into theft, and an excellent antitheft effect can be exhibited.

[0007]

However, in conventional audio equipment, when the detachable operation unit is removed from the equipment main body,
Or Ijiekutoki is pressed by mistake, if Ijiekutoki input signal is generated by noise, such as a CD, in the state the insertion opening with removable operating section of the insertion slot of the main body is not parallel serial
The recording medium was ejected, and as a result , the recording medium such as a CD was damaged.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to provide a CD or the like even if an eject key input signal is generated while the detachable operation unit is being detached.
The present invention provides an in-vehicle audio device that prevents a recording medium such as a CD from being ejected and prevents damage to a recording medium such as a CD due to interference with a detachable operation unit of the recording medium such as a CD.

[0009]

SUMMARY OF THE INVENTION The present invention, in order to achieve the above object, the vehicle audio equipment device comprising a freely detachable operating unit detachable to the apparatus main body and the device main body, wherein the removable operation a detachment detection means part to detect that it has been detached from the apparatus main body, characterized in that a control means for inhibiting the discharge of the recording medium in the apparatus main body by a signal from the detachable detection unit. And said
According to the signal from the attachment / detachment detection means,
It is also characterized by being drawn into the equipment itself .

[0010]

According to the above configuration, when removing the detachable operation unit,
Even if the eject key is accidentally touched or an eject key input signal is generated due to noise, the recording medium such as a CD is not ejected, so that the recording medium such as a CD can be prevented from being damaged. .

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of an audio device with a detachable operation unit (DCP) removed from the device main body, FIG. 2 is a block diagram of a control system, and FIG. 3 is a diagram when the detachable operation unit is detached from the device main body. FIG. 4 is a flowchart showing the operation.

[0013] 1 in FIG. 1 is a device body, the device body 1 with card attached to your vehicle body, not shown,
A detachable operation unit 2 is detachably attached to the front of the device body 1.

As shown in FIG. 1, the detachable operation section 2 has an operation panel 3 on its front face. The operation panel 3 displays a plurality of operation keys 4 and the operation contents of these operation keys 4. An insertion port 6 for inserting a display device 5 and a CD 7 as a recording medium into the apparatus main body 1 are provided, and an insertion port 1a is also provided on the front surface of the apparatus main body 1 at a position corresponding to the insertion port 6. Is open.

The detachable operating section 2 has an engaging hole at one end side for removably engaging with the engaging projection 1b of the main body 1, and a lock section (both not shown) at the other end side. When the detachable operation unit 2 is detached from the device body 1
First, after removing the lock portion, as shown in FIG.
After the detachable operation unit 2 is rotated around the position b to the virtual line position, the detachable operation unit 2 is removed from the device main body 1.

The device main body 1 is provided with a DCP detection switch 8 as a detachment detecting means for detecting a detached state of the detachable operation unit 2. This DCP detection switch 8 is shown in FIG.
As shown in (1), the detachable operation unit 2 is detached from the device main body 1 by being connected to an arithmetic processing unit (CPU) 9 provided on the device main unit 1 side and a control unit 10 provided in the detachable operation unit 2. And a detachment signal is sent from the DCP detection switch 8 to the arithmetic processing unit 9, whereby the arithmetic processing unit 9
Is configured to control a loading mechanism (not shown) for loading and reloading the CD7. The arithmetic processing unit (CPU) 9 and the control unit 10 constitute control means.

Next, the operation will be described in detail with reference to the operation flowchart of the disk protection function shown in FIG. First, CD7
Is determined to be in the process of being ejected (step S
1) If ejecting is in progress, it is determined whether the DCP switch is off (step S2). If it is not off, this flow is terminated, but if it is off, a disk pull-in process is performed (step S3). On the other hand, in step S1, if the ejection is not in progress, it is determined whether or not the apparatus is waiting at the reload position (step S4). If the apparatus is not waiting, this flow ends. Then, the same process as in the case of the ejection is performed.

As described above, if the detachable operation unit is removed during the ejection or while waiting for reloading, the disk is redrawn again. Even if the eject key is touched or the eject key input signal is generated due to noise, the CD 7 is not ejected. Therefore, the CD 7 is not ejected when the insertion slot 1a of the device main body 1 and the insertion slot 6 of the detachable operation unit 2 are not parallel, and it is possible to prevent the CD 7 from interfering with the detachable operation unit 2 and being damaged.

In the above embodiment, a CD player has been described. However, it goes without saying that the present invention can be similarly applied to a cassette tape player.

[0020]

As described in detail above, according to the present invention, in order to prevent the theft of the audio equipment, when the detachable operation unit is removed from the main body of the equipment, the eject key is touched by mistake or the input key is input by noise. Even if a signal is generated, the ejection of recording media such as CDs stored in the main body of the device is stopped, and when a CD or the like is being ejected, it is pulled into the main body of the device. No CD or the like is discharged.

With this, when the detachable operation unit is detached,
CD like interference without CD etc. Symbol to removable operating part of the recording medium
Problems such as damage to the recording medium can be eliminated.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a detachable operation unit is removed from a device main body of an on-vehicle audio device device according to an embodiment of the present invention.

FIG. 2 is a block diagram of a control system of the on-vehicle audio device according to one embodiment of the present invention.

FIG. 3 is an operation explanatory diagram of the on-vehicle audio device according to the embodiment of the present invention.

FIG. 4 is a flowchart showing an operation of the on-vehicle audio device according to one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Device main body 2 Removable operation part 8 DCP detection switch

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-337593 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G11B 33/02 301 B60R 11/02 G08B 13 / 00

Claims (2)

(57) [Claims] 1. A vehicle audio equipment device comprising a freely detachable operating unit detachable from the device body and the device main body, detachment detection, wherein the removable operating unit detects that it has been detached from the device body means and, serial in the device body by a signal from the detachment detection means
An on-vehicle audio apparatus, comprising: a control unit for prohibiting discharge of a recording medium . 2. Ejection according to a signal from said attachment / detachment detection means.
The recording medium inside is drawn into the device main body.
The on-vehicle acoustic device according to claim 1.