JPS61195153U

JPS61195153U -

Info

Publication number: JPS61195153U
Application number: JP5903585U
Authority: JP
Priority date: 1985-04-19
Filing date: 1985-04-19
Publication date: 1986-12-05

Description

[Brief explanation of the drawing]

第１図は本考案一実施例のブロツク図、第２図
は同じく回路図、第３図は同じくハンドセツトの
斜視図、第４図は他の実施例のブロツク図、第５
図は同じく回路図、第６図は同じくタイミングチ
ヤートである。１……電話機、３……電話機回路、４……増幅
器、５……音量調節手段、６……スイツチング手
段、７……受話機。 FIG. 1 is a block diagram of one embodiment of the present invention, FIG. 2 is a circuit diagram, FIG. 3 is a perspective view of a handset, FIG. 4 is a block diagram of another embodiment, and FIG.
This figure is also a circuit diagram, and FIG. 6 is also a timing chart. DESCRIPTION OF SYMBOLS 1...Telephone, 3...Telephone circuit, 4...Amplifier, 5...Volume adjustment means, 6...Switching means, 7...Telephone receiver.

Claims

[Scope of Claim for Utility Model Registration] (1) A telephone circuit connected to a central office line or extension line and forming a receiving circuit to the receiver, an amplifier that amplifies the output of the telephone circuit, and a volume adjuster connected to the amplifier. 1. A telephone with a listening volume adjustment function, comprising a switching means for setting or resetting the volume adjusting means, the switching means being disposed in a handset, and adjusting the listening volume by the switching means. (2) The switching means is a monostable switch, and the volume adjustment means is set only while the switch is manually turned on or off, and the volume adjustment means is set while the switch is turned off or on. 2. A telephone with a receiving volume adjustment function according to claim 1, wherein the telephone is reset. (3) The switching means includes a monostable switch, an inverter connected to the switch, a capacitor connected between the connection point of the switch and the inverter and ground, and a shifter to which the inverter output is applied. It is constituted by a register circuit and a telephone current detection circuit that outputs a reset signal to the shift register circuit, and the plurality of volume adjustment means are set in stages by the output of the shift register circuit, and the telephone current detection circuit sets the plurality of volume adjustment means in stages. A telephone with a receiving volume adjustment function according to claim 1, which is characterized in that the volume adjustment means are reset at the same time.