JPS6077560A - Telephone set - Google Patents

Abstract

PURPOSE:To attain the confirmation of depressing of a dial button and to prevent mis-operation by lighting a depressed dial button when a dial pad is depressed. CONSTITUTION:Light emitting diodes D1-D12 are incorporated to the dial pad 5 for dial oscillating operation. A dial pulse transmission circuit 2a transmits a dial signal corresponding to the depressed pad 5. Furthermore, a memory 3 stores information transmitted from the circuit 2a. Then a lighting circuit 4 inputs a signal outputted sequentially from the memory 3 and lights the diodes D1-D12.

Description

[Detailed description of the invention] The present invention relates to a push-button dial telephone.

When a person presses a dial pad to generate a dial oscillation, there is no special way to check whether the dial button has been pressed, so dialing errors such as corner presses or incorrect dials cannot be visually determined. There wasn't.

An object of the present invention is that when a telephone operator presses the dial pad to generate a dial oscillation, the pressed dial button lights up, confirming that the dial button has been pressed, and allowing the operator to operate the dial button. The purpose of the present invention is to provide a telephone that can prevent erroneous operation.

The telephone of the present invention includes a dial pad that performs a dial oscillation operation, a light emitting diode built into the dial pad, and a dial pulse sending circuit that sends a dial signal in response to the dial pad pressed by the operator.
a memory for storing information sent out from the sending circuit;
Next, the present invention will be explained with reference to an embodiment, in which a light emitting diode built in the dial pad is illuminated by inputting signals sequentially outputted from the memory.

FIG. 1 is a block diagram of one embodiment of the present invention.

In the figure, by removing the handset 1 and pressing the desired dial button on the dial pad 5, the matrix contacts are made and the make signal of the dial contacts is input to the dial pulse sending circuit 2a included in the circuit network 2. , is sent out as a dial pulse from the dial pulse sending circuit 2a to the office line or PBX line L1+L2. On the other hand, the dial pulse data output from the dial pulse sending circuit 2a is input to the memory circuit 3 and stored therein. The dial pulse data stored in the memory circuit 3 is input to the LBD driver circuit (lighting circuit) 4 at fixed time intervals, for example, 500m5 to 1500ms, and the light emitting diode D! ,D
Convert 2゜... into the signals necessary to control,
Light emitting diode D1 + D2 p...Input to the built-in dial pad 5, and the light emitting diode in the pressed dial button lights up for approximately 10100O.

As described above, in the telephone of the present invention, the dial pad has a built-in light emitting diode, and when the operator performs a dial oscillation operation, the pressed dial button lights up for a certain period of time, which prevents dialing errors and prevents pressing. You can visually confirm the buttons.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention. 1...Telephone receiver, 2...Circuit network, 2a.
...Dial pulse sending circuit, 3...Memory, 4...River/LED driver, 5...Dial pad, (D,,1),...D+2) ...
...Light emitting diode.

Claims (1)

[Claims] A dial bat that performs a dial oscillation operation, a light emitting diode built into this dial bat, a dial knob sending circuit that transmits a dial signal in response to the dial knob pressed by the operator, and a dial bat that sends out a dial signal in response to the dial knob pressed by the operator. The device is characterized by comprising a memory that stores information sent out from the sending circuit, and a lighting circuit that receives signals sequentially output from the memory and lights up a light emitting diode built in the dial bat. telephone.