JPH0732416B2 - Telephone call control method - Google Patents

Description

[Detailed Description of the Invention] [Outline] When a key relating to a telephone call is kept on for a certain period of time or more, a call ending process is performed to automatically release an unintended call state.

[Industrial application field]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a call origination control system for a telephone that originates a key operation.

[Conventional technology]

A mobile phone handset is generally stored in a center console near the front seat or an armrest of the rear seat. This is because the handset has a handset and an operation / display unit.

Dialing methods using the handset include a normal mode in which the start key is pressed and then dialing in, a speed mode in which one of the dial keys (0 to 9) is pressed or the redial key (#) is pressed, and the like. .

In normal mode, you can also press the start key after dialing in. In the short mode, the number registered in advance in the memory corresponding to the dial key is called, or the previously called number registered in the redial memory is called and transmitted.

[Problems to be solved by the invention]

Generally, the operation time of the above-mentioned keys is short. However, if something brought in the car is hit, it may remain on for a long time. If this is a call-related key, it can be in an off-hook state in the normal mode and can be in a line connection state in the shortened mode. The former interferes with incoming calls,
The latter also leads to an increase in useless call charges. Therefore,
Conventionally, an alarm is sounded when the off-hook state before making a call continues for a certain period of time.

However, if an alarm sound of this kind unexpectedly occurs during driving, the driver's attention is distracted from the driving, which is not preferable. Also, this function cannot notify the line connection in the shortened mode. The present invention seeks to improve these points.

[Means for solving problems]

The present invention is characterized in that the operation time of a call-related key provided in a handset of a telephone, which performs a call operation when operated, is measured, and when the operation time exceeds a certain time, a call termination process is performed. It is a thing.

FIG. 1 is a schematic configuration diagram of a car telephone. 11 is a key matrix, 12 is a handset operation unit, 13 is a handset control unit, 21 is a car telephone radio, and 22 is an antenna.

FIG. 2 is an explanatory view of various keys constituting the key matrix 11. K ₁ is a shortening key, K ₂ is a start key, K ₃ is a redial key (#), and K ₁₀ is a dial key of 0-9.

[Action]

In a normal call operation, it is rare to hold a key related to a call (start key K _{2 in} normal mode, dial key K _{10 in} shortened mode or redial key K ₃ ) for a long time.
Therefore, if this kind of key continues to be turned on for a certain period of time (for example, 2 seconds), if the call is automatically terminated, it is possible that an unintentional outgoing state (off-hook state or line connection state) continues for the certain period of time or longer. To be prevented. For this reason, it is not necessary to notify with an alarm sound, and it is possible to avoid adding unnecessary call charges for a long time.

〔Example〕

FIG. 3 is a flow chart showing an embodiment of the present invention, and shows the processing of the handset control unit 13 in FIG. In step S1, it is determined from the state of the abbreviated key K ₁ whether or not the abbreviation mode is set. If reduction mode either 0-9 key K ₁₀ or # key K _3, it is determined whether or not depressed (step S2). If it is not the shortened mode, it is determined whether the start key K ₂ has been pressed (step S3). If the answer is YES in step S2 or step S3, the timer is set and the timer flag is set in step S4. After that, the timer is cleared when the key OFF code indicating that the key is turned off is received, and the timer flag is cleared (steps S5 and S6), but if not, it is determined whether the timer overflows. Monitor (Steps S7, S
8). The time of this timer is the above-mentioned fixed time, and if this time is exceeded, the call end processing (S9) is performed. Then, the process returns to the start through other processing (S10).

〔The invention's effect〕

As described above, according to the present invention, even if a call-related key provided on a telephone handset is pressed by an object to turn it on, an unintended call state is automatically released within a certain period of time. It is possible to avoid the inconvenience of being alarmed by the alarm sound of, and inconveniently adding the call charge without knowing.

[Brief description of drawings]

 FIG. 1 is a schematic configuration diagram of a car telephone to which the present invention is applied, FIG. 2 is an explanatory diagram of various keys, and FIG. 3 is a flowchart showing an embodiment of the present invention.

Front Page Continuation (72) Inventor Takeshi Torii 1 Toyota Town, Toyota City, Aichi Prefecture, Toyota Motor Co., Ltd. (72) Inventor Takuma Yamamoto, 1 Toyota Town, Toyota City, Aichi, Toyota Motor Co., Ltd. (56) References JP-A-60-172866 (JP, A) JP-A-56-30352 (JP, A)

Claims (3)

[Claims] 1. An operation time of a call key, which is provided on a telephone handset and is operated to perform a call operation, is measured,
A telephone call origination control method characterized in that a call termination process is performed when the operation time exceeds a certain time. 2. The call origination control system for a telephone according to claim 1, wherein the call originator key is a dial key in a shortened mode which is shifted by operating a short-circuit key. 3. The call origination control method for a telephone according to claim 1, wherein the call origination key is a redial key for transmitting a previously dialed number registered in a redial memory.