JPS61224800A - Microphone with operating member - Google Patents

Abstract

PURPOSE:To decrease the number of cores of a cord and to make smaller the connecting tool by overlapping the direct current signal by the circuit element of the capacitor, resistance, etc., for the receiving side and the transmitting side transmission lines between the microphone with the operating member and the radio communicating device. CONSTITUTION:A radio communicating device 10 is connected using a connecting cord 7 by the first transmission line related to a speaker 3 and the second transmission line related to a microphone 2 to a microphone 1 with the operating member equipped with the speaker 3, the microphone 2 and respective types of the operating switches. At respective transmitting side and receiving side of the first and second transmission lines, the circuit of capacitors C1-C4 for preventing the direct current and resistances R1-R4 to ground one edge are arranged. When respective operating switches are operated, the direct current signal of the radio communicating device 10 is overlapped to the first and second transmission lines, the number of the core of the connecting cord 7 is decreased and the connecting tool is made smaller.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a microphone with an operating member, and more particularly to a microphone with an operating member used in a wireless communication device.

[Technical background of the invention and its problems]

As shown in FIG.
T switch, Chi 4, up button 5, and down button 6 are provided.

The wireless communication device 10 is provided with a microphone jack and a plug Pn of the connection cord r7 (n indicates the number of connector pins).
The microphone with the operating member and the wireless communication device 10 are connected by the operation member. The connection cord 7 is provided with a transmission path for transmission and reception as well as a control line for operating members. The control line may be provided with an up button 5 for automatically scanning frequencies, a down button 6, and other function keys such as a reset button (not shown). In this case, connection code 7
The core wire is the transmission/reception transmission line plus the control line,
The number of connection pins of the microphone jack Jn corresponds to the plug Pn. The number and arrangement of connection pins of the microphone jack Jn are determined by the functions of the wireless communication device 10. A microphone with an operating member is available as an option. Therefore, considering the compatibility of microphones with operating members, it is desirable to standardize the arrangement. Further, the maximum permissible number of core wires should be equal and as small as possible for mass-produced wireless communication devices. In the figure, numeral 11 is a display member, and 12 is an operating member.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned points, and provides a microphone with an operating member that reduces the number of fibers of a connecting cord with a wireless communication device and facilitates stacking of connector bins. It is intended to.

[Summary of the invention]

In the present invention, the reception side transmission path and the transmission side transmission path between the microphone with an operation member and the wireless communication device are configured so that DC signals can be superimposed using circuit elements such as capacitors and resistors. A pair of leg lines is obtained for the transmission line related to the AC signal.

[Embodiments of the invention]

EMBODIMENT OF THE INVENTION Hereinafter, one embodiment of the microphone with an operation member according to the present invention will be described in detail with reference to the drawings.

In FIG. 2, C1""C4 is a DC blocking capacitor. The direct current blocking capacitor 01eC3 is connected to the microphone 2 of the microphone with operation member 1, the cord terminal 7a, the core wire of the connection cord 7, the plug P0, the microphone jack of the wireless communication device 10, the microphone amplifier 20, and the transmitting side transmission path. It is connected in series to the output side of the microphone 2 and the input side of the microphone amplifier 20. DC blocking capacitors C4 and C
3 is the AF amplifier 17 of the wireless communication device 10, the microphone jack, the wire of the plug P1s connection cord 7, the cord V terminal 7b, and the AP amplifier 1 of the reception side transmission path leading to the speaker 3.
The output side of the speaker 7 and the input side of the speaker 3 are connected in series.

One end of resistor 11*R1 is a microphone jack.

The other end is connected to the reference potential point and one end of the up button 5.

One ends of the resistors R1 and R4 are connected to the cord terminal 7b and the microphone jack, respectively, and the other ends are connected to one end of the down button 6 and a reference potential point. The other ends of the A and D buttons 5 and the down button 6 are connected to the cord terminal 7c. PTT
One end of switch 4 is connected to the coil 18m of the antenna switching relay 18 via the cord terminal 70%, the core wire of the connection cord 7, the plug P3, the microphone jack, the wire J, %, so the +vcc that passed through the coil 18m appears at the cord terminal 7c. The voltage at the cord terminal 7c is used as the DC signal source for the up chain 5 and down button 6. Mikeja, RiJ
, is connected to the reference potential point, plug P1, cord terminal 7d
It serves as a reference potential point for the microphone 1 with an operating member. This reference potential point is for microphone 2 and speaker 3.
and a PTT switch, connected to the other end of switch 4.

When the up button 5 or the down button 6 is pressed, the other end of the resistor R or R3 is connected to the fill 18a of the antenna switching relay 18.
+VCC via resistor R8 or resistor R
One end of 4 forms a DC signal from L level to H level. The DC signal related to this resistor R3 is filtered to remove the audio signal by a filter consisting of a resistor R6 and a capacitor c6, and is sent to the terminal 13m as a down signal. The DC signal related to the resistor R4 is sent out as a hairline signal to the terminal 13b via a filter consisting of a resistor R5 and a capacitor aS.

The outputs of the terminals 13m and 13b are input to the CPU 14, etc., and frequency selection such as channel selection is performed.

When PTT switch and Ji 4 are pressed, the antenna switching relay 18
operates and enters the sending state. At the same time, +vcc at the other end of the up chain 5 and down button 6 serves as a reference potential point, so that no up signal or down signal is generated when the up chain 5 and down button 6 are pressed.

Resistance values of resistors R1 to R4 and DC blocking capacitor CI
``'The capacitance of C4 is set to a value that does not provide mutual protection against audio signals and DC signals.

Body elements may also be used.

Resistors R1 to R4 and DC blocking capacitors 01 to C4
The direct current superimposing means consisting of the above is not limited to the above embodiment, and may be a direct current superimposing means using circuit elements such as coils and semiconductors.

The function keys are not limited to the A, D, and DOWN buttons.
It may be replaced with other function keys.

〔Effect of the invention〕

The microphone with an operating member according to the present invention includes a first transmission path related to the speaker, a second transmission path related to the microphone, and a first transmission path related to the microphone. Since it is configured to include a DC signal superimposing means for superimposing a DC signal onto the second transmission line, it has an advantage in that the transmission line is used as a control line. Therefore, it is possible to give two meanings to one pin terminal, and the degree of freedom in arranging the pin terminals is increased, which has the effect of facilitating standardization of the arrangement. Further, the number of core wires in the connection S-P can be reduced, and the size of connecting tools such as connectors can be reduced.

[Brief explanation of drawings]

Figure 1 is a perspective view of a microphone with an operating member;
The figure shows a part of the microphone with an operating member according to the present invention.
FIG. In the figure, 1 is a microphone with an operation member, 2 is a microphone, 3 is a speaker, and 4 is a P
TT switch, 5 is the A and D buttons, 6 is the Down button, 7 is the connection cord, 7a to 7d are the cord terminals, 10 is the wireless communication device,
11 is a display member, 12 is an operation member, 13m, 13b are terminals, 14 is a CPU, 15 is an antenna, 16 is a receiving circuit,
17 is an AP amplifier, 18 is an antenna switching relay, 19 is a transmitting circuit, 20 is a microphone amplifier %C, ~C6 is a capacitor% Jo%J is a microphone jack, p, %P is a plug SR1 ~ R6 are resistors . Patent applicant: Yaesu Musen Co., Ltd. No. 1RPJ No. 2R14

Claims (1)

[Claims] 1. A microphone with an operating member that includes a speaker and a transmission path to a wireless communication device, wherein a first transmission path related to the speaker, a second transmission path related to the microphone, and the first and second transmission paths described above. DC signal superimposition means for superimposing a DC signal onto the transmission path of the operating member, the operating member being configured to send the DC signal to the wireless communication device via the transmission path in accordance with the operation of the operating member. Microphone included.