JP2864252B2 - Telephone with data reception function - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is provided with a data receiving function of transiting to various states by data input via a telephone line in a plurality of telephones which are connected to a pair of telephone lines. Phone related.

[Conventional technology]

In a key telephone device in which a main device and a plurality of key telephones are combined or star-wired with a communication line and a control line,
Control data has been transmitted and received between the main unit and individual key telephones via control lines. In this case, the key telephone receives the control data sent from the main unit via the control line, and simply displays the call display or the use state of the line.

[Problems to be solved by the invention]

When connected to a telephone line, one unit can perform general operations such as making and receiving calls.When multiple single telephones are connected to a pair of telephone lines and used in combination, various operations can be performed on these single telephones. There is a request to start by remote control.

An object of the present invention is to designate a single telephone specified by this control data among single telephones that send control data from one telephone, an exchange connecting a telephone line, etc. to a pair of telephone lines and receive the control data. In other words, to transfer the service.

[Means for solving the problem]

 Therefore, the configuration of the present invention is as follows.

In a plurality of telephones connected to a pair of telephone lines, a telephone in a standby state is superimposed on the DC voltage of the pair of telephone lines by transmitting data from the telephone capturing the pair of telephone lines. A receiving unit for receiving a data string, means for determining whether or not the data string has been sent to the own telephone from the contents of the data string; and Means for causing the own telephone to transition to the state of the telephone after the pair of telephone lines indicated by the data string are captured, when the telephone is determined to be a telephone with a data reception function.

〔Example〕

FIG. 1 is an operation flowchart of a single telephone (hereinafter referred to as a telephone) having a data receiving function according to an embodiment of the present invention. FIG. 2 is a circuit diagram of the telephone shown in FIG. Third
The figure shows data input by the telephone from the telephone line.

1 is a central processing unit, 2 is a backup power supply, 3 is a power supply circuit, 4 is a speech IC, 5 is a handset, 6 is a hook switch, 7 is a bridge diode, 8 is a telephone line, 9 is a data input unit, and 21 is a data input unit. A data receiving circuit, 22 is a hold tone generator, and 51 is a speaker.

First, the contents of the data sequence shown in FIG. 3 transmitted by the transfer source performing the service transfer to the telephone line are as shown in Table 1. Here, an example in which three telephones are connected to a pair of telephone lines 8 is shown.

The data example has a third 8-bit data D ₀ to D ₇ as shown in figure repeated three times The cycle is repeated 3 times the series of data sequence.

Next, the operation of the telephone will be described based on the operation flow chart of FIG.

It is assumed that one of the telephones, which is doubly connected to a pair of telephone lines, for example, the No. 1 telephone presses the dial button [6] during the telephone line acquisition. In this case, the central processing unit (hereafter CPU)
Since the telephone line is being captured, 1 is not determined to be a dial transmission, it is determined to be a service transfer operation, and 8-bit data of data No. 6 corresponding to button [6] is transmitted to the telephone line.

No.2 connected to the same telephone line 8 as No.1 telephone
The No. 3 telephone detects the data string transmitted from the No. 1 telephone at the data input unit 9. The CPU 1 determines that its own telephone is in a standby state, inputs a data string from the receiving circuit 21, and performs an operation set in the telephone when two-thirds of the received data matches a preset one. Let it.

As shown in Table 1, there are two contents indicated by the setting data. One is for which telephone, and the other is what function the corresponding telephone exerts.

The setting data is 8 because the transferred data is No. 6.
The bit is “10010011”, which indicates that the telephone of No. 3 is set to the speaker reception mode. No.3
CPU1 phones determines that received the setting data is operated by supplying a base current to the transistor Q _2, thereby the result of the transistor Q ₁ is operated, phone No.3 captures the telephone line 8. The CPU 1 further controls the speech IC 4 to shift the telephone to the speaker reception mode. Therefore N
The voice call of the No. 3 telephone from the o.1 telephone is also possible.

If the button operation of the No. 1 telephone is dial button [9] instead of dial button [6], data No. 9
The 8-bit setting data corresponding to is "10011011"
It is. This setting data is the content that causes the telephone No. 3 from Table 1 to transition to the on-hook hold mode. This data string transmitted to the telephone line as shown in FIG.
Is received by the receiving circuit 21 via the data input unit 9 and if the CPU 1 determines that 2/3 or more of the received data is the setting data, the C
PU1 is entrapping the telephone line 8 to its own telephone supplies base current to the Q _2. Further, by activating the hold tone generator 22 and sending a control signal to the speech IC 4, the hold tone is transmitted from the speech IC 4 to the telephone line 8 and the speaker 51, and the telephone is shifted to the on-hook hold mode. Like this
It is possible for the No. 1 telephone operator to put the No. 3 telephone on hold, disconnect the No. 1 telephone from the telephone line, move on his own, and resume talking on the No. 3 telephone. .

Other service functions that are not displayed in the first table can be transferred to a desired telephone by increasing the number of types of setting data and adding the accompanying processing of the CPU 1.

In the above-described example, the transfer is performed by the No. 1 telephone, but may be performed by any telephone. Further, the transfer is not limited to the telephone, but may be an exchange or a control box connected to a telephone line.

〔The invention's effect〕

As described in detail above, for a telephone with a data receiving function according to the present invention, a plurality of telephones are connected to a telephone line, so that a data string transmitted to the telephone line from a multiple-connected telephone or the like is received. The designated telephones shown in the column are shifted to the designated service state, so that various services such as voice call, self-response at the remote telephone that has been remotely controlled by the operator, and other services can be realized. Various uses were made possible.

[Brief description of the drawings]

FIG. 1 is an operation flowchart of a single telephone with a data receiving function according to an embodiment of the present invention. FIG. 2 is a circuit diagram of the telephone shown in FIG. FIG. 3 shows a data string input by the telephone from the telephone line. 1 central processing unit, 4 speech IC, 5 transmitter / receiver, 6 hook switch, 7 bridge diode, 8 telephone line, 9 data input unit, 21 data reception circuit , 22 ... Hold tone generator, 51 ... Speaker.

Continued on the front page (72) Inventor Tetsuya Imahori 2-23-2 Nishi-Gotanda, Shinagawa-ku, Tokyo Inside Kanda Communication Industry Co., Ltd. (72) Michio Shiba 2-23-2 Nishi-Gotanda, Shinagawa-ku, Tokyo Kanda Communication (72) Inventor Kenzo Masuoka 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Inventor Makoto Shimizu 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone (72) Inventor Kimitoshi Nakamura 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Kenichi Shiina 2-57 Koishikawa, Bunkyo-ku, Tokyo Meisei Electric Co., Ltd. (72) Inventor Takahisa Arai 2-57-7 Koishikawa, Bunkyo-ku, Tokyo Meisei Electric Co., Ltd. (72) Inventor Masanori Tanaka 3-1-1 Asahigaoka, Hino-shi, Tokyo Inside the Toshiba Hino Plant ( 72) Inventor Kazuhiro Izuka 3-1-1 Asahigaoka, Hino City, Tokyo Inside the Toshiba Hino Plant (72) Inventor Eiji Morikami 1-7-14 Kugayama, Suginami-ku, Tokyo Inside Iwasaki Communication Equipment Co., Ltd. (72) Inventor Yuichiro Mitsutake 1-7-14 Kugayama, Suginami-ku, Tokyo Iwasaki in the communication equipment Co., Ltd. examiner Hiroaki Kawai (56) reference Patent Sho 62-6595 (JP, a) JP Akira 63-27146 (JP, a) (58 ) investigated the field (Int.Cl. ⁶ , DB name) H04M 1/72

Claims (1)

(57) [Claims] 1. A plurality of telephones which are connected to a pair of telephone lines in a duplex manner, wherein a telephone in a standby state transmits a DC signal of the pair of telephone lines by transmitting data from the telephone which is capturing the pair of telephone lines. A receiving unit for receiving a data string superimposed on a voltage, means for determining whether or not the data string has been sent to the own telephone from the contents of the data string; and Means for causing the self-telephone to transition to a state of the telephone after the pair of telephone lines indicated by the data string have been captured, when it is determined that the telephone line has been transmitted to the telephone. Telephone with reception function.