JPH0628742Y2 - Key input device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a key input device which can be suitably implemented in, for example, a push button type telephone.

2. Description of the Related Art In recent years, as a telephone, a telephone having a push-button type key input device and having a so-called push-phone structure has become widespread. The push button type telephone is generally provided with various auxiliary functions such as a telephone number shortening registration function in addition to a call function. Each function is activated, for example, by operating a function setting key called a function key, and then operating a setting key predetermined corresponding to each function. Hereinafter, the active state of a function is a state in which a unique operation of each function is being executed, and the inactive state of a function is a state in which the operation is stopped.

Conventionally, there is an operation sound erasing function as an example of the function. Normally, in a push button type telephone, an operation sound is emitted as a confirmation sound when each operation key is operated. However, the operation sound may not be required in some cases because the user wants quietness. The operation sound erasing function is a function that does not sound the operation sound even when the operation key is operated in such a case.

FIG. 4 is a flow chart showing the switching control operation of the conventional operation sound erasing function. The operation sound erasing function is activated by operating the function setting key FK and then operating the numeral key of "3" (hereinafter referred to as "numeral key" 3 ""). Suppose.

When the program of FIG. 4 (1) starts, step s1
Then, it is determined whether or not the operation key is operated. If the operation key is not operated, the process proceeds to another process. On the other hand, when the operation key is operated, the process proceeds to step s2, and in order to perform the operation sound operation, the process proceeds to the program of FIG. 4 (2), and the program is started.

When the operation sound operation program is started, it is determined in step m1 whether or not the silent flag SF set in the memory is set to the set state. In addition,
The silent flag SF is a flag indicating an active / inactive state of the operation sound erasing function. When the silent flag SF is set to the reset state, the process proceeds to step m2, the operation sound is emitted by the sound generating means, and the process returns to step s3 of the program of FIG. 4 (1).
On the other hand, if the silent flag SF is set to the set state in step m1, the operation is not sounded, and the process proceeds to step s of the program of FIG. 4 (1).
Go to 3.

At step s3, it is determined whether or not the operated operation key is the numeral key "3". If it is not the numeral key “3”, the process proceeds to another process. On the other hand, when it is determined that the numeral key "3" has been operated, it is determined in step s4 whether the previously operated key is the function setting key FK. If it is not the function setting key FK, the process proceeds to another process. If it is the function setting key FK, the process is step s.
In step 5, it is determined whether or not the silent flag SF is set in the reset state. Silent flag SF
Is set, the process sets the silent flag SF to the reset state in step s6, and proceeds to another process. On the other hand, if the silent flag SF is set to the reset state at step s5, the process goes to step s5.
In step 7, the silent flag SF is set to the set state, and the process proceeds to other processing.

Problems to be Solved by the Invention The above-described braking operation will be described along with the procedure from the operation sound ringing state to the operation sound erasing state (from the inactive state of the operation sound erasing function to the active state). When the operator decides to erase the operation sound, the function setting key FK is first operated. The fourth
First, the silent flag SF is set to the reset state by the program shown in the figure. Therefore, an operation sound is emitted when any key is operated, and thus an operation sound is emitted even when the function setting key FK is operated. After that, when the numeral key "3" is operated, the silent sound SF is set again after the operation sound is emitted, the operation sound erasing function is activated, and the operation sound is generated at any key operation. Does not ring. That is, the operation sound erasing function is started after the operation sound of the operation key (numerical key “3”) at the completion of setting is sounded.

However, from the operator's point of view, the operation sound sounds until the completion of the function setting, so it is necessary to surely recognize that the function is in the active state, that is, the operation sound does not sound thereafter. , It is necessary to operate the operation key again and confirm that the operation sound does not sound. Therefore, a confirmation operation is required after setting the operation sound erasing function, and the operability in setting the function is deteriorated.

Although the above-mentioned control describes the case where the operation sound canceling function is switched from the deactivation to the activation, the same problem occurs when the function is canceled. That is, the operation sound is erased until the operation of canceling the operation sound elimination function is performed, and thereafter the operation sound is emitted, so a confirmation operation for confirming the operation sound is necessary.

The object of the present invention is to solve the above-mentioned problems, and the switching control of the function is completed at the time of operating the last operation key for setting the function, and the operability does not require a confirmation operation. It is to provide a key input device that can improve the.

Means for Solving the Problems The present invention provides an operation key 2, a processing circuit 7 for deriving a control output corresponding to the operation in response to an operation on the operation key 2, and an operation sound in response to the operation. Silent flag SF indicating whether or not to erase
The processing circuit 7 outputs a drive signal in response to an operation on the operation key 2 when the silent flag SF is not set in the memory M, and the processing circuit 7 is set. When the silent flag SF is set or reset, the drive signal in response to at least the last operation key operation of the operation keys 2 for the setting or resetting is stopped. Such control means 4 for stopping or outputting the sound, and sound generating means 3 for generating sound in response to the drive signal.
It is a key input device characterized by including and.

Operation According to the present invention, the control means derives the control output in response to the operation on the operation key 2, and drives and controls the sound generating means 3 to generate the operation sound in response to the operation on the operation key 2. In the key input device, a memory M is provided in association with the processing circuit 7 for deriving the control output. A silent flag SF indicating whether or not the operation sound should be erased is stored in the memory M.

That is, when the operation key 2 is, for example, a push button switch of a telephone, the processing circuit 7 derives a control output to a transmission / reception circuit or the like. Further, the processing circuit 7, when the silent flag SF is not set in the memory M,
A drive signal is output in response to an operation on the operation key 2,
An operation sound is generated from the sound generating means 3. On the other hand, when the silent flag SF is set, the output of the drive signal in response to the operation on the operation key 2 is stopped, and the sonication of the operation sound is stopped. Furthermore, when the silent flag SF is set or reset, that is, when the state of the silent flag SF is changed, the operation key 2 for the set or reset is set.
Among the above operations, at least the drive signal in response to the operation of the last operation key is stopped or output.

Therefore, the operation sound in response to the switching operation of the silent flag SF is newly set or reset at least when the last operation key is operated.
It is not necessary to perform a confirmation operation after the set or reset operation.

Embodiment FIG. 1 is a block diagram showing a simplified electrical configuration of a key input device 1 according to an embodiment of the present invention. The key input device 1 includes an operation key group 2 including a plurality of push button type operation keys, and a sound generation unit 3 that generates a predetermined sound.
And a control means 4 for controlling the sound generating means 3 for each key operation of the operation key group 2.

The operation key group 2 is arranged in a handle of a handset, for example, in an automobile telephone. FIG. 2 is a front view of the handset 9 used in the automobile telephone. The handset 9 is roughly composed of a handle 10 on which the operation key group 2 is arranged, and an earpiece 1 connected by the handle 10.
1 and a transmitter 12. Operation key group 2
Includes numeric keys of "0" to "9", symbol keys of "#" and "*", a function setting key FK operated when setting various functions, and other operation keys. Composed.

A speaker 13 is attached inside the earpiece 11 so as to face the rear side of the earpiece 11, and a display portion 14 for displaying a telephone number or the like is provided on the front surface of the earpiece 11. A microphone 15 is attached inside the transmitter 12 so as to face the back side of the transmitter 12, and the voice of the operator is picked up by the microphone 15. Also the transmitter 1
2, a speaker 6 of a sound generating means 3 described later is arranged toward the front side of the transmitter 12, and the speaker 6 produces a ringing sound or an operation sound for each operation of an operation key described later. To play.

The side of the handle 10 is provided with a fax switch 17 which is operated when the handset 9 is detached from the base 16.

The sound generating means 3 shown in FIG. 1 includes, for example, an oscillating circuit 5 and a speaker 6, and when a control signal described later is input to the oscillating circuit 5, the oscillating circuit 5 is described.
Based on the vibration of, the speaker 6 reproduces a predetermined sound (operation sound).

The control means 4 is composed of, for example, a microcomputer, and controls the drive / stop of the sound generation means 3 based on the memory M, the input signals from the operation keys and the state of the silent flag SF in the memory M. Processing circuit 7 is included.

The silent flag SF set in the memory M is a flag indicating the active / inactive state of the operation sound erasing function. When the silent flag SF is set to the reset state, the operation sound erasing function is inactive. That is, the processing circuit 7 sends a drive signal to the oscillation circuit 5 of the sound generating means 3 for each operation of each operation key of the operation key group 2.
The operation sound is reproduced from the speaker 6. On the other hand, when the silent flag SF is set to the set state, the operation sound erasing function is in the active state. Therefore, even if each operation key of the operation key group 2 is operated, the drive signal from the processing circuit 7 to the oscillation circuit 5 is not sent and the operation sound is not reproduced.

The switching control of the operation sound erasing function is performed by operating a predetermined operation key provided in the operation key group 2. In the present embodiment, it is assumed that the function switching is performed by operating the function setting key FK and subsequently operating the numeral key "3".

FIG. 3 is a flow chart showing the switching control operation of the operation sound erasing function. The program shown in FIG. 3 (1) is moved to steps n1 to n2 when a signal indicating a key operation from the operation key group 2 is input in each control operation which is always performed in the processing circuit 7, and is started. It

At step n1, it is determined whether or not a key operation is performed. If no key operation is performed yet, the process proceeds to another process that continues, and when a key operation is performed, the process proceeds to step n2.
Go to. At step n2, it is judged whether or not the operated operation key is the numeral key "3", and if not, the processing proceeds to step n7.

If the operated key is the numeral key "3", the process proceeds to step n3. At step n3, it is determined whether or not the operation key operated immediately before the operation of the numeral key "3" is the function setting key FK. Function setting key FK
If not, the process proceeds to step n7. If it is the function setting key FK, the process proceeds to step n4. The operation key operated last time is stored in the memory M, for example. At step n4, it is determined whether or not the silent flag SF in the memory M has already been set to the set state. If the flag SF has already been set to the set state, the process proceeds to step n5, sets the flag SF to the reset state, and proceeds to step n7. On the other hand, if the flag SF is still set to the reset state, the process proceeds to step n6 to set the flag SF to the set state and proceeds to step n7.

In step n7, the process proceeds to the operation sound operation program shown in FIG. 3 (2), and the program is started.
At step k1, it is judged whether or not the silent flag SF is in the set state. If the flag SF is in the reset state, the process proceeds to step k2, and the operation sound is emitted by driving the sound generating means 3, and the third sound is generated.
The process proceeds to another process of the program shown in FIG. On the other hand, if it is determined in step k1 that the silent flag SF is in the set state, the process proceeds to another process of the program of FIG. 3 (1) without sounding the operation sound.

Switching control of the operation sound erasing function will be described based on the above processing procedure.

(1) From Non-Active to Active of Operation Sound Elimination Function First, since the operation sound elimination function is in the inactive state, the silent flag SF is in the reset state. Therefore, an operation sound is produced by any key operation. To set the operation sound, first, the function setting key FK is operated. In the control means 4, the fact that the function setting key FK is operated is stored in the memory M, and the state of the silent flag SF is not changed. Therefore, the operation sound sounds.

If the operation key to be operated next is the numeral key "3", it is judged from the memory M that the operation key operated last time is the function setting key FK, and the silent flag SF is set to the set state. By setting the silent flag SF to the set state, the setting of the operation sound erasing function is completed, and the operation sound for each key operation thereafter does not sound. That is, the operation sound after that including the operation of the numeral key "3" is erased. Therefore, since the activated state of the operation sound erasing function is confirmed by the key operation when the setting of the function is completed, the confirmation operation after the completion of the setting is not necessary.

(2) From active to inactive operation sound erasing function First, since the operation sound erasing function is active, the silent flag SF is in the set state. Therefore, no operation sound is produced by any key operation. As for the operation sound, first, the function setting key FK is operated in order to cancel the function.
In the control means 4, the fact that the function setting key FK is operated is stored in the memory M, and the state of the silent flag SF is not changed. Therefore, the operator does not ring.

If the operation key to be operated next is the numeral key "3", it is judged from the memory M that the operation key operated last time is the function setting key FK, and the silent flag SF is set to the reset state. By setting the silent flag SF to the reset state, the release of the operation sound erasing function is completed, and the operation sound for each key operation thereafter sounds. That is, the operation sound after that including the operation of the numeral key "3" sounds. Therefore, since the activated state of the operation sound erasing function is confirmed by the key operation when the cancellation of the function is completed, the confirmation operation after the completion of the cancellation is not required.

Therefore, according to the above-described embodiment, when the active / inactive state of the operation sound erasing function is switched, the state switched at the time of operating the last operation key (numerical key “3”) to be operated is changed. Since it can be confirmed, the confirmation operation is not required again, and the operability as a key input device is significantly improved.

In addition, in the present embodiment, an automobile telephone is described as an example of the telephone. However, as another embodiment, the same number of telephones can be implemented as long as the telephones have the above-mentioned functions in the push button format.

Further, in the present embodiment, when switching control of the function,
It is described when operating the individual operation keys (the function setting key FK and the numeral key "3"). However, as another embodiment, there may be one dedicated key for setting / releasing the function. That is, the operation sound operation may be switched when the dedicated key is operated.

Furthermore, in this embodiment, the key input device in the telephone is described. However, as another embodiment, a general panel switch having the operation sound erasing function may be used.

As described above, according to the present invention, the silent flag SF indicating whether or not the operation sound in response to the operation of the operation key 2 should be erased is stored in the memory M, and the silent flag SF is set. Alternatively, when resetting, the operation sound in response to at least the operation of the last operation key among the operations of the operation key 2 for the set or the reset is stopped or output. Therefore, the key operation for confirmation is not required again, and the operability as a key input device is significantly improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing a simplified electrical structure of a key input device 1 according to an embodiment of the present invention, FIG. 2 is a front view of a handset 9 used in a mobile telephone, and FIG. FIG. 4 is a flow chart showing a function switching control operation, and FIG. 4 is a flow chart showing a conventional operation sound erasing function switching control operation. 1 ... key input device, 2 ... operation key group, 3 ... sound generation means, 4 ... control means, 5 ... oscillation circuit, 6 ... speaker, 7 ... processing circuit, FK ... function setting key , M ……
Memory, SF ... Silent flag

Claims (1)

[Scope of utility model registration request] 1. An operation key 2, a processing circuit 7 for deriving a control output corresponding to the operation in response to an operation on the operation key 2, and whether or not an operation sound in response to the operation should be erased. Silent flag SF
The processing circuit 7 outputs a drive signal in response to an operation on the operation key 2 when the silent flag SF is not set in the memory M, and the processing circuit 7 is set. When the silent flag SF is set or reset, the drive signal in response to at least the last operation key operation of the operation keys 2 for the setting or resetting is stopped. Such control means 4 for stopping or outputting the sound, and sound generating means 3 for generating sound in response to the drive signal.
A key input device comprising: