JPS6031393A - Electronic key telephone set - Google Patents

Abstract

PURPOSE:To eliminate the need for setting for night condition through the button operation of an attendant board by providing a photodetector detecting lightness of a location where a specific telephone set is placed to the said telephone set and controlling a changeover means by an output signal of the photodetector so as to bring the night state automatically when the lighting fixture of a room where the reception telephone set is provided goes out. CONSTITUTION:In designating one set of reception telephone set through the button operation of an attendant board 10, the data of button information from the attendant board 10 is analyzed and processed by a central processing unit 9 via a data transmission/reception circuit 8, an external line incoming tone is set so as to ring only a button telephone set 111 only by an individual incoming tone designating circuit 4, and the operator of the said telephone set executes the reception only to the external line as the recipient. A photodetector of the reception telephone set 111 inputs a voltage value in response to the lightness of the room to an integration circuit, which integrates the input value for a prescribed time. When the operator is absent at night and the lighting fixture of the room goes out, the output of the integration circuit is a prescribed value or below after a time, a night state circuit 7 detects it via the central processing unit 9, controls the individual tone designation circuit 4 to ring the external line incoming tone to other specific button telephone set 111, and to bring the state in the night state.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] The present invention relates to a control device for an electronic key telephone device. More particularly, the present invention relates to a control device for automatically placing a key telephone device in a nighttime state.

[Description of prior art]

Conventional key telephone devices operate a button on the receiving stand so that only a specific telephone will ring when an incoming call is received from an outside line. ) was away at night, by pressing a button on the reception desk, the system switched to night mode and set other telephones to ring for outside calls. but,
Button operation is required when setting to night mode,
If the receptionist is absent without setting the system to the nighttime mode, only the reception telephone will ring in response to an incoming outside line, resulting in a problem in that the incoming outside call may not be accepted.

[Purpose of the invention]

The present invention solves the above-mentioned drawbacks, and by specifying a telephone that makes a ringtone in response to an outside call and allowing that telephone to be used as a reception telephone, the brightness of the room in which the reception telephone is installed can be reduced. To provide a key telephone device that eliminates the need for setting by button operation by configuring other reception telephones to automatically emit an outside call ring tone when the telephone becomes dark for a certain period of time or longer. shall be.

[Key points of the invention]

The present invention includes a plurality of key telephones and a main device that includes a connection terminal for an outside line and selectively connects the outside line to the plurality of button telephones. A ring tone sounds on the first specific telephone among the button telephones, and at night, a ring tone sounds on a second specific telephone other than the first particular telephone among the plurality of button telephones. The electronic key telephone device is equipped with a switching means for specifying that the telephone should ring, and the first specific telephone is further provided with a light receiving element for detecting the brightness of the place where the telephone is placed; It is characterized by comprising an integrating circuit that integrates the output signal of the element, and means for controlling the switching means using the output of the integrating circuit.

[Explanation based on examples]

An outline of an electronic key/telephone system according to an embodiment of the present invention will be explained based on FIG. This device consists of one main device, one reception desk, and multiple key telephones. The main unit, reception desk, and key telephone each have a built-in microcomputer and are controlled by programs stored therein.

First, 1 is the main device of the electronic key telephone device,
This device has a trunk circuit 2 which is an interface with the line, and a trunk circuit 11 which is an interface with the line. A Nuitsute matrix 3 that connects each of the button telephones 11n to 11n, an individual ring tone designation circuit 4 that assigns an outside line ring tone to a specific button telephone, a tone circuit 5 that generates an N overtone signal, and a tone circuit and line for each button telephone. Audio interface circuit 6 that connects the audio circuit
, a night state circuit 7 which controls the individual ring tone designation circuit to put it in a night state when the output of the integral circuit in the reception telephone falls below a certain value; sends and receives data to and from each button telephone and the reception desk; It is composed of a data transmitting/receiving circuit 8, and a central processing unit 9 that analyzes data exchanged with each telephone and a reception desk and controls the entire apparatus. Also,
Reference numeral 10 denotes a reception desk, where the usage status of each telephone is displayed, and the main device is used for various services such as individual ring tone designation, switching calling, etc., which allows only a specific telephone to ring an outside line by pressing a button on the reception desk 10. can be provided to each phone via. Further, 111 to 11n are key telephones, and these telephones have a plurality of lines, and can answer only one line at the same time.

This button telephone also includes a reception telephone 11. which is equipped with a light receiving element and an integrating circuit. ．． It includes 11 no.

Next, the operation of this device will be explained. First, when one of the reception telephones is specified by operating a button on the reception desk 10, the button information data from the reception desk 10 is analyzed by the central processing unit 9 via the data transmission/reception circuit 8, and the individual ring tone designation circuit 4, the outside line ring tone is set to sound only on the key telephone 11t, and the operator of the telephone accepts the outside line as a receiver. The light receiving element of the reception telephone 11t inputs a voltage value corresponding to the brightness of the room to an integrating circuit 7, and the integrating circuit integrates the input value over a fixed time period. When the receptionist is absent at night and the lights in the room are turned off, the output of the integrating circuit drops below a certain value after a certain period of time. The nighttime state circuit 7 detects this through the central processing unit 9, controls the individual ringtone designation circuit 4, and selects other specific key telephones 11.
At 1', the outside line lid beeps to indicate nighttime. However, even in this state, if a button operation, on-hook, off-hook, or other operation is performed on the reception telephone 11tK, the nighttime state circuit 7 is reset via the central processing unit 9 and returns to the normal state. Therefore, it is no longer necessary to set the nighttime state by operating a button on the reception desk.

〔Effect of the invention〕

As explained above, the present invention, when the night receptionist is absent and the lights in the room equipped with the reception telephone go out,
The system automatically enters the nighttime mode, eliminating the need to set the nighttime mode by operating a button on the reception desk, and has the effect of simplifying the handling of the key/telephone device.

[Brief explanation of drawings]

FIG. 1 is a block configuration diagram showing the configuration of an apparatus according to an embodiment of the present invention. FIG. 2 is a block configuration diagram showing the configuration of a reception telephone. DESCRIPTION OF SYMBOLS 1... Main device, 2... Trunk circuit, 3... Switch matrix, 4... Individual ring tone designation circuit, 5...
・Tone circuit, 6...Audio interface circuit, 7
... Nighttime state circuit, 8... Data transmission/reception circuit, 9.
... central processing unit, 10 ... reception desk, 11 ... button telephone, 12 ... light receiving element, 13 ... integrating circuit,
14...Central processing unit, 15°°. Audio circuit, 16...Data transmission/reception circuit, 17...Button switch circuit. Patent applicant: NEC Corporation Representative Patent attorney: Naotaka Ide

Claims (1)

[Claims] (1) Completely equipped with a main device that includes multiple key telephones and external line connection terminals and selectively connects these external lines to the multiple key telephones, and in response to incoming calls from the external lines, during the daytime, the multiple telephones listed above The ring tone sounds on the first specific telephone among the button telephones, and the ring tone sounds on the second specific telephone among the plurality of button telephones other than the first specific telephone among the plurality of button telephones. In a bar key telephone device equipped with a switching means for specifying that a ring tone is produced, the first specific telephone is provided with a light receiving element for detecting the brightness of the place where the telephone is placed. An electronic key telephone device comprising: an integrating circuit for integrating the output signal of the light receiving element; and means for controlling the switching means from an output trap of the integrating circuit.