JP3115074B2 - In-vehicle telephone device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an in-vehicle telephone device which is mounted on a vehicle such as a passenger car and can output the voice of a talking party from a speaker of an audio device.

[0002]

2. Description of the Related Art In recent years, telephone devices that can be attached to vehicles such as passenger cars have become widespread and used. In general, a vehicle is equipped with an audio device having at least an FM / AM tuner and the like. As described above, when the telephone device and the audio device are mounted on the vehicle, the telephone device and the audio device are connected to each other so that the user can talk in a hands-free state without holding the handset in consideration of driving safety. And a signal line, etc., so that the voice of the other party on the call can be output from the speaker of the audio device.

[0003]

In the conventional vehicle-mounted telephone device, since the telephone device and the audio device are connected by a connector and a signal line as described above, the connector and the signal line are used to connect the two. And other connecting parts are required. In addition, since a wiring process for wiring the signal lines must be performed, there is an inconvenience that the mounting operation is difficult.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned inconvenience, and there is no need for a connecting part for connecting a telephone device and an audio device at the time of mounting, so that there is no need to perform a wiring process, and the mounting operation is not required. To provide a vehicle-mounted telephone device that can easily perform the following.

[0005]

A vehicle-mounted telephone device according to the first invention comprises a telephone device and an audio device having at least an FM tuner unit and each unit operating under the control of an audio control unit. A remote control signal transmitting means for transmitting a remote control signal by infrared rays to a handset holder of the telephone device, an FM signal transmitting means for transmitting a voice signal by FM radio waves to the telephone device, and a remote control signal transmitting means to the audio device. And an infrared light receiving section for receiving the infrared light and outputting a remote control signal to the audio control section.

A vehicle-mounted telephone device according to a second aspect of the present invention comprises a telephone device and an audio device in which each unit operates under the control of an audio control unit. And FM signal transmitting means for transmitting an audio signal by infrared rays, wherein the audio apparatus receives infrared rays from the remote control signal transmitting means and outputs a remote control signal to an audio control unit. A second infrared receiver for receiving an infrared signal from the FM signal transmitter and outputting an audio signal to the audio controller;
Is provided.

[0007]

First, the in-vehicle telephone device according to the first invention is
A remote control signal is transmitted from the remote control signal transmitting means to the infrared receiving section, and the FM signal transmitting means transmits
Transmits audio signals using M radio waves. Therefore, the operation of the audio device is controlled by the remote control signal, and outputs the voice of the other party talking on the speaker from the speaker.

Further, in the vehicle telephone device according to the second invention, the remote control signal transmitting means transmits a remote control signal to the first infrared light receiving section, and the FM signal transmitting means transmits the remote control signal to the second infrared light receiving section. Transmit the audio signal toward. Therefore, the operation of the audio device is controlled by the remote control signal, and outputs the voice of the other party talking on the speaker from the speaker.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a layout diagram showing the layout of each part of the vehicle telephone device. In FIG. 1, reference numeral 13 denotes a microphone arranged on an instrument panel in front of a steering wheel, which functions as a transmitter in a hands-free state.

Reference numeral 14 denotes a handset holder attached to the rear of the shift lever of the console box;
Denotes a handset on-hook to the handset holder 14. Then, the handset holder 14, light-emitting diodes (first light-emitting diode) 14a ₂ to transmit a remote control signal in the infrared is provided toward the infrared receiving portion (first infrared receiving portion) 29a of the audio unit 2a to be described later Have been. 2a shows an audio unit constituting the audio device, and an infrared light receiving portion 29a for receiving infrared rays from the light emitting diode 14 ₂ provided in the operation unit 24 to the front, the display unit 26 and the handset holder 14, is provided I have.

FIG. 2 is a block diagram showing the configuration of a vehicle-mounted telephone device according to a first embodiment of the present invention, in which the same parts as those in FIG. 1 are denoted by the same reference numerals. In FIG. 2, reference numeral 1 denotes a telephone device, which includes an antenna 11, an automobile telephone unit 12 connected to the antenna 11, and a microphone 13 connected to the automobile telephone unit 12.
And a handset holder 14 connected to the automobile telephone unit 12 and a handset 15 connected to the handset holder 14 and placed (on-hook) or picked up (off-hook) with respect to the handset holder 14. I have.

[0012] Then, the handset holder 14 includes a remote control unit 14a ₁ for transmitting a remote control signal based on the incoming signal operation or automobile telephone unit 12 of the remote control key provided in the handset 15, the remote light emitting diodes for transmitting the remote control signal of an infrared based on the control of the control unit 14a ₁ (first light-emitting diode) and 14a _2,
An FM transmitting portion 14b ₁ for transmitting an audio signal in FM radio,
The antenna 14 connected to the FM transmission unit 14b ₁
It is composed of a b _2.

Further, although not shown, the handset holder 14 is provided with a switch for detecting the on-hook / off-hook of the handset 15. Incidentally, the remote control signal transmission means is composed of a remote control unit 14a ₁ and the light emitting diode 14a _2, FM signal transmitting means is composed of an FM transmitting portion 14b ₁ and the antenna 14b _2.

Reference numeral 2 denotes an audio device, and an antenna 21
An FM / AM tuner section 22 connected to the antenna 21; a CD (compact disc) player section 23; an operation section 24 provided with operation keys;
M / AM tuner 22, CD player 23, an audio control unit 25 for controlling each unit based on the signal from the infrared light receiving portion 29a ₂ of the operation unit 24 or below, various under the control of the audio control unit 25 a display unit 26 for displaying information, a power amplifier 27 for amplifying the audio signal from the audio control unit 25, a speaker 28 connected to the power amplifier 27, the light emitting diode 14a ₂ constituting the telephone 1 And an infrared receiving section (first infrared receiving section) 29a that receives the infrared ray and outputs a signal (remote control signal) to the audio control section 25. The audio unit 2a includes an FM / AM tuner unit 22 to a power amplifier 27 and an infrared light receiving unit 29a.

FIG. 3 is a flowchart showing the operation of transmitting a remote control signal from the telephone device to the audio device, and FIGS. 4 and 5 are flowcharts showing the operation of the audio device receiving the remote control signal.

Next, the operation will be described. First, the operation of the telephone device 1 will be described with reference to FIG. 3. It is determined whether or not a remote control key provided on the handset 15 has been operated (step ST1). part 14a ₁ transmits a remote control signal corresponding to operating the light emitting diodes 14a ₂ (step ST2).

Next, after step ST2 or at step
If the remote control key has not been operated in the determination of ST1, it is determined whether a call has been received (step ST3), and if not, the process returns to step ST1. Also step
If an incoming call is determined in ST3, for example, the handset 15
Determines hands-free key provided has been operated (step ST4), if hands-free key is operated, the remote control unit 14a ₁ is a light emitting diode 14a ₂
To transmit the switching request signal (step ST
5), FM transmitting portion 14b ₁ transmits the voice signal through the antenna 14b ₂ (step ST6).

Next, it is determined whether the call end key provided on the handset 15 has been operated (step ST).
7) If the call end key is not operated, it is determined whether the remote control key is operated (step)
ST8). Then, if it is operated remote control key is determined in step ST8, the remote control unit 14a ₁ after transmitting a remote control signal corresponding to operating the light emitting diodes 14a ₂ (step ST9), or the determination in step ST8 If the remote control key has not been operated, the process returns to step ST6.

Further, if it is operated the call end key is determined in step ST7, the remote control unit 14a ₁ is operating the light emitting diode 14a ₂ transmits a switching request signal (step ST10). Further, if it is determined in step ST4 that the hands-free key has not been operated, the process proceeds to a normal call routine (step ST11).

Next, the operation of the audio device 2 will be described with reference to FIGS. 4 and 5. The audio device 2 in a normal operation state normally responds to a remote control signal or an operation of an operation key of the operation unit 24. (Including when the source is not selected) (step ST21), it is determined whether a remote control signal has been received (step ST22), and whether the received remote control signal is a switching request signal (Step ST
twenty three).

If it is determined in step ST22 that no remote control signal has been received,
If it is determined in ST23 that the remote control signal is not the switching request signal, the process proceeds to step ST21. Next, step ST23
If the remote control signal is a switching request signal in the determination of (1), it is determined whether the source is selected (step ST
24) If the source is selected, after muting the audio signal to the power amplifier 27 (step ST25), it is determined whether the source is the CD player unit 23 (step ST26).

Then, if the source is C
In the case of the D player section 23, the CD player section 23 is stopped, and the information and the source of the final reproduction position are set to the CD player section 2
3 is stored (step ST27). Also, in the determination of step ST26, the source is the FM / AM tuner unit 22,
For example, in the case of FM broadcasting, after storing the information of the current reception frequency and the information whose source is FM broadcasting (step ST
28) or after step ST27, the reception frequency of the FM / AM tuner unit 22 is changed to the transmission frequency (F
Tune to a frequency different from M broadcast (step ST
29) “TEL” indicating that the call is a telephone is displayed on the display unit 26 (step ST30).

Next, the muting of the audio signal to the power amplifier 27 is released (step ST31). If the source has not been selected in the determination in step ST24, information indicating that there is no source is stored (step ST31).

In this way, the voice of the other party who is talking is output from the speaker 28, and when talking is started in a hands-free state, the system waits for a remote control signal to be received (step ST41). Upon reception, it is determined whether the received signal is a switching request signal (step ST42). Then, if the remote control signal is not the switching request signal in the determination of step ST42, the volume is adjusted only in the case of the remote control signal for controlling the increase / decrease of the volume (step ST43), and the process returns to step ST41.

If it is determined in step ST42 that the remote control signal is a switching request signal, the power amplifier 2
After muting the audio signal to 7 (step ST44), a determination is made based on the stored information as to whether there was a source that was being listened to before the call (step ST45).
Next, if there is a source in the determination in step ST45, it is determined based on the information stored as to whether the source is the CD player unit 23 (step ST46). If the source is the CD player 23, the FM / AM tuner unit 22 is stopped (step ST47).

Then, the CD player 23 is operated to restart the reproduction from the last reproduction position stored (step ST4).
8) "CD" indicating that the source is the CD player unit 23 is displayed on the display unit 26 (step ST49). If it is determined in step ST46 that the source is the FM broadcast of the FM / AM tuner 22, for example, FM broadcasting, the reception frequency is tuned to the stored reception frequency (step ST50), and the display unit 2
After "FM" indicating that the source is FM broadcast is displayed in step 6 (step ST51), or after step ST49, the muting of the audio signal to the power amplifier 27 is released (step ST52). Further, if there is no source in the determination in step ST45, the power is turned off (step ST53).

By controlling and operating each unit as described above, the voice of the other party who is talking can be output from the speaker 28 of the audio device 2, so that the handset 15 is not in a hands-free state. You can talk on. When the call ends, the audio device 2 returns to the state before the call, so that the information from the source before the call can be continuously heard.

When the power of the audio device 2 is not turned on, that is, when the source is not selected, when the remote control signal is received, the step
The power is turned on in ST21. Further, when the handset 15 is off-hook during a normal call, an attenuation signal is transmitted from the remote control unit 14a, and the volume of information output from the speaker 28 is adjusted so as not to disturb the call.

Further, even during a normal call, by operating the hand free key of the handset 15,
The voice of the other party who is talking may be output from the speaker 28. As described above, according to the first embodiment of the present invention, there is no need for connecting parts for connecting the telephone device 1 and the audio device 2 at the time of installation, so that there is no need to perform a wiring process, thereby facilitating the installation work. Can do it.

FIG. 6 is a block diagram showing the configuration of a vehicle telephone apparatus according to a second embodiment of the present invention. The same parts as those in FIGS. In FIG. 6, reference numeral 14b ₃ denotes a light emitting diode (second light emitting diode) constituting the handset holder 14,
Is connected to the FM transmission unit 14b _1, it is to transmit the audio signal from the FM transmitting portion 14b ₁ in the infrared.

[0031] 29b shows the infrared receiving portion constituting the audio unit 2a (second infrared receiver), the signal (audio signal) to the audio controller 25 which receives infrared rays from the light-emitting diode 14b ₃ of telephone 1 Output. Incidentally, FM signal transmitting means is composed of an FM No. transmitting portion 14b ₁ and the light-emitting diode 14b _3, the audio unit 2a is FM / AM tuner 22 to power amplifier 27 and the infrared light receiving portion 29a, is constituted by 29b.

FIG. 7 is a partial flowchart showing the operation of transmitting a remote control signal from the telephone device to the audio device, and FIG. 8 is a partial flowchart showing the operation of the audio device receiving the remote control signal.

Next, the operation will be described. First, FIG.
Step ST6A shown is a step that replaces step ST6 shown in FIG. 3, FM transmitting portion 14b ₁ transmits the audio signal in the infrared by operating the light-emitting diode 14b _3. Next, step ST29A shown in FIG. 8 is a step replacing step ST29 shown in FIG.
7 is switched to an audio signal from the infrared receiving section 29b.

Since the operation is the same as that of the first embodiment except for the operations shown in FIGS. 7 and 8, the description is omitted. As described above, according to the second embodiment of the present invention, the first
In addition to obtaining the same effect as that of the embodiment, the voice signal during the call is also transmitted from the telephone device 1 to the audio device 2 by infrared rays, so that eavesdropping is prevented.

Although the first embodiment has been described with reference to the example in which the handset holder 14 is provided with the FM signal transmitting means, the same effect can be obtained if the telephone apparatus 1 is provided with the FM signal transmitting means. Obtainable. Further, in the second embodiment, the example in which the remote control signal and the audio signal are transmitted by the separate light emitting diodes 14a ₂ and 14b ₃ has been described, but one light emitting diode can be used in common. Further, in the second embodiment, the infrared receiving units 29a and 29b can be shared by one infrared receiving unit.

[0036]

As described above, according to the first aspect of the present invention, the handset holder of the telephone device is provided with remote control signal transmitting means for transmitting a remote control signal by infrared rays, and the voice signal is transmitted to the telephone device by FM radio waves. An FM signal transmitting means is provided, and the audio apparatus is provided with an infrared light receiving section for receiving infrared rays of the remote control signal transmitting means and outputting a remote control signal to the audio control section.

According to a second aspect of the present invention, a remote control signal transmitting means for transmitting a remote control signal by infrared rays and a FM signal transmitting means for transmitting a voice signal by infrared rays are provided to a handset holder of the telephone apparatus. A first infrared light receiving section for receiving the infrared light of the control signal transmitting means and outputting a remote control signal to the audio control section; and a second infrared light receiving section for receiving the infrared light of the FM signal transmitting means and outputting the audio signal to the audio control section. An infrared light receiving unit is provided. Therefore, there is no need for connecting parts for connecting the telephone device and the audio device at the time of mounting, and there is no need to perform wiring processing, so that the mounting operation can be easily performed.

[Brief description of the drawings]

FIG. 1 is a layout diagram showing the layout of each part of a vehicle-mounted telephone device.

FIG. 2 is a block diagram showing a configuration of a vehicle-mounted telephone device according to a first embodiment of the present invention;

FIG. 3 is a flowchart showing an operation of transmitting a remote control signal from the telephone device to the audio device in the first embodiment.

FIG. 4 is a flowchart illustrating an operation of the audio device that has received the remote control signal in the first embodiment.

FIG. 5 is a flowchart illustrating an operation of the audio device that has received the remote control signal in the first embodiment.

FIG. 6 is a block diagram showing a configuration of an in-vehicle telephone device according to a second embodiment of the present invention.

FIG. 7 is a partial flowchart showing an operation of transmitting a remote control signal from the telephone device to the audio device in the second embodiment.

FIG. 8 is a partial flowchart illustrating an operation of the audio device that has received the remote control signal in the second embodiment.

[Explanation of symbols]

Reference Signs List 1 telephone device 11, 14b ₂ antenna 12 car telephone unit 13 microphone 14 handset holder 14a ₁ remote control unit 14a ₂ , 14b ₃ light emitting diode 14b ₁ FM transmitter 2 audio device 2a audio unit 21 antenna 22 FM / AM tuner unit 23 CD Player section 24 Operation section 25 Audio control section 26 Display section 27 Power amplifier 28 Speaker 29a, 29b Infrared light receiving section

──────────────────────────────────────────────────続 き Continuing on the front page (72) Toshiyuki Hayashi 25-1, Nishimachi, Yamada, Kawaji-shi, Saitama Prefecture Pioneer Corporation Kawagoe Factory (72) Inventor Toru Yoshihara 25-1, Nishimachi, Yamato, Kawagoe-shi, Saitama Pioneer Inside the Kawagoe Factory Co., Ltd. (72) Inventor Hirofumi Honma 25-1, Nishimachi, Yamada-ji, Kawajie-shi, Saitama Prefecture Pioneer Corporation Kawagoe Factory (56) References JP-A-63-176052 (JP, A) JP-A-4- 270539 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04B 7/26 H04M 1/60 H04Q 7/00

Claims (2)

(57) [Claims] 1. An in-vehicle telephone device comprising: a telephone device; and an audio device including at least an FM tuner unit, and each unit operates under the control of an audio control unit. A remote control signal transmitting means for transmitting a remote control signal is provided, and an FM signal transmitting means for transmitting an audio signal by FM radio waves is provided in the telephone device, and the audio device receives infrared rays of the remote control signal transmitting device. An in-vehicle telephone device, wherein the audio control unit is provided with an infrared light receiving unit that outputs a remote control signal. 2. An in-vehicle telephone device comprising a telephone device and an audio device whose components operate under the control of an audio control unit, wherein the remote control transmits infrared remote control signals to a handset holder of the telephone device. A first control signal transmitting means, and a first FM signal transmitting means for transmitting an audio signal by infrared rays, wherein the audio apparatus receives the infrared rays of the remote control signal transmitting means and outputs a remote control signal to the audio control unit. An infrared receiving section, and the F
An in-vehicle telephone device comprising: a second infrared light receiving unit that receives infrared light from an M signal transmitting unit and outputs an audio signal to the audio control unit.