JPH1079698A - Analog type portable telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the head of speech from being lost even in a transmission stopped state by regarding a transmission state as the existing state of a voice state signal for prescribed time at the time of inputting a sound specification signal by a sound specification button during the control of a voice operation relay circuit (VOX) and then setting up a transmission state signal to a transmission state. SOLUTION: At the time of inputting a sound specification signal (e) indicating an existing state even when the sound specification button is depressed during the control of the VOX and a voice state signal (a) detected by a voice state detecting means is an absent state, a signal communication control means starts a timer, and after the lapse of prescribed time Δt, outputs a counting state signal (f). Simultaneously the control means holds a transmission state signal (c) at a transmission state for the prescribed time Δt even when the voice state detecting means regards the signal (a) as an absent state. When speech is started within the prescribed time Δt, delay time generated in a sound signal (d) during a period from time tx up to the rise of the existing state is removed and the head of the speech is not lost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an analog portable telephone for instructing and controlling a transmission state during VOX (voice activated relay circuit) control.

[0002]

2. Description of the Related Art Generally, this type of analog portable telephone has a VOX function for saving power consumption during communication. In order to operate the VOX function, the analog type portable telephone body includes a voice state detecting means for detecting whether a voice state signal indicating a voice input from a transmitter under VOX control is in an active state or an inactive state. Signal communication control means for transmitting an audio signal based on the audio state signal to the other party in the presence state, and setting the transmission state signal to the non-transmission state in the absence state.

FIG. 3 is a timing chart related to various communication signals shown for explaining VOX control in such an analog type portable telephone.

In an analog portable telephone under VOX control, when the voice state detecting means detects that no voice is input from the transmitter, that is, when the voice state signal a of the transmitter is in an inactive state, In order to save power consumption, the signal communication control means reduces the transmission amount of the transmission state signal c to a non-transmission state as indicated by an area α.

Further, when the voice state detection means detects that the voice input from the transmitter is equal to or higher than a predetermined volume, that is, that the voice state signal a of the transmitter is a predetermined state or higher, In the signal communication control means, a sound / silence detection state signal b
Is determined to be a sound and a sound state as shown by the area β is set.

At this time, the signal communication control means starts transmission of an audio signal based on the audio state signal to the other party when the sound / silence detection state signal b is in the sound state. As a result, the voice input from the transmitter is transmitted to the other party, and the voice signal d that can be heard by the other party is in a state as shown by the area γ.

[0007]

In the case of the analog portable telephone described above, if a call is started in the transmission stop state during the VOX control, the start of the speech is recognized and the state shifts from a silent state to a sound state. Since it takes a little time and there is a delay time before transmission is resumed (time from time tx indicated by audio signal d that can be heard by the other party to the rise of the active state), the start of speech is lost and it becomes difficult to hear. There is a problem.

[0008] On the other hand, if the VOX control is canceled, power consumption increases and the time during which a call can be made is shortened.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem. The technical problem of the present invention is that even if the transmission is stopped during VOX control, the start of a telephone call is not lost when starting a call. It is an object of the present invention to provide a mobile phone.

[0010]

According to the present invention, a VOX is provided.
Voice state detection means for detecting whether a voice state signal indicating a voice input from a controlled transmitter is active or inactive, and, in the active state, an audio signal based on the voice state signal to the other party. In an analog mobile phone having signal communication control means for transmitting and setting a transmission state signal to a non-transmission state when there is no transmission, a voice instruction signal indicating that a voice state signal is present during VOX control is indicated. A sound instruction button for inputting by pressing is provided, and the signal communication control means regards the sound state signal as being in a non-state by the sound state detection means within a predetermined time according to the sound instruction signal, and regards the state as a sound state. An analog mobile phone in which the transmission state signal is set to the transmission state is obtained.

According to the present invention, in the above-mentioned analog type portable telephone, there is provided a counting means for counting a predetermined time from the start of input of the sound indicating signal and outputting a counting state signal,
The signal communication control means obtains an analog mobile phone that returns the transmission state signal to the non-transmission state when there is no state after a predetermined time has elapsed according to the count state signal.

[0012]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

This analog portable telephone has the same configuration as that of the conventional portable telephone, that is, an audio state for detecting whether an audio state signal indicating an audio input from a transmitter under VOX control is active or inactive. A signal communication control means for transmitting a voice signal based on the voice state signal to the other party in the presence state, and for setting the transmission state signal to the non-transmission state in the absence state. An unlocked sound instruction button for inputting a sound instruction signal indicating that the audio state signal is in the activated state by pressing the instruction is provided.

According to this, the signal communication control means sets the transmission state signal to the transmission state by regarding the transmission state signal as being in the presence state even if the voice state detection means considers the state to be non-state within the predetermined time according to the sound instruction signal. It is supposed to.

In the case of this analog type portable telephone, a counting means for counting a predetermined time from the start of input of the sound indicating signal and outputting a counting state signal (here, a timer for counting real time is used. The signal communication control means returns the transmission state signal to the non-transmission state when there is no state after a lapse of a predetermined time according to the counting state signal.

FIG. 1 is a timing chart related to various communication signals shown for explaining VOX control (transmission state instruction control) in an analog portable telephone according to one embodiment of the present invention.

In this analog portable telephone, when the user starts talking during VOX control, the sound state signal a detected by the sound state detecting means by pressing the sound instruction button is set to the non-state (the sound state signal a). Even if the sound volume is at a level determined to be silent), a sound instruction signal e indicating that the sound is present is input regardless of this.

When the sound instruction signal e is input, the signal communication control means starts a timer, and the timer counts a predetermined time Δt to output a count state signal f. Incidentally, the sound instruction signal e is ON when the sound instruction button is pressed and OFF when the sound instruction button is not pressed, and the count state signal f is ON when counting a predetermined time Δt and OFF when counting other than the predetermined time Δt. Becomes

At the same time, when the sound instruction signal e is input to the signal communication control means, the sound / silence detection is performed within a predetermined time Δt even if the sound state signal a is regarded as inactive by the sound state detection means. The state signal b is regarded as a sound state, and the transmission state signal c is set to the transmission state. Accordingly, if the user starts speaking within the predetermined time Δt, the delay time which has conventionally occurred from the time tx to the rise of the state in the audio signal d is eliminated, and the time tx is absorbed in the rise of the state, and
The beginning of the story will not be lost.

When the sound state detecting means detects no state with respect to the sound state signal a after a lapse of a predetermined time Δt, the signal communication control means causes the sound / silence detection state signal b to be detected.
Is regarded as a silent state, the transmission state signal c is set to an untransmitted state, transmission is stopped, and the mode shifts to a power saving mode.

That is, in the signal communication control means here, V
When the count state signal f of the timer is ON during the OX control,
Alternatively, when the sound / silence detection state signal b is in the sound state, it is considered that the sound state is detected, and the transmission state signal c is set to the transmission state.

Such operation and operation processing can be repeated any number of times during one call, thereby making it possible to prevent the start of the conversation from becoming difficult to hear when talking to the other party. Therefore, in this analog mobile phone, even when the transmission is stopped during the VOX control, the start of the call is not lost at the start of the call.

Incidentally, the predetermined time Δt counted by the above-mentioned timer needs to be set appropriately so that there is no excess or deficiency. If the predetermined time Δt is too short, FIG.
As shown in (a), a delay time occurs from the time tx to the rise of the presence state in the voice signal d as in the related art, and the start of the speech is instantaneously lost, and conversely, the predetermined time Δt Is too long, as shown in FIG.
Even if the start of the talk is not lost, the transmission state signal c may not be transmitted after time ty and the transmission state may be unnecessarily held, which is not preferable.

[0024]

As described above, according to the analog portable telephone of the present invention, it is possible to input a sound indicating signal indicating that the sound state signal is in the ON state during the VOX control by pressing the instruction. A voice command button is provided, and the signal communication control means transmits a transmission status signal within a predetermined period of time according to the voice command signal even if the existing voice status detection means considers the voice status signal to be non-active. By setting the state, if the user starts talking within a predetermined time, the delay time in the voice signal heard by the other party does not occur as in the related art, so that the start of the call is not lost even in the transmission stop state. become. In addition, since such transmission state instruction control can be repeatedly performed during VOX control, power saving, which is an advantage of VOX control, and extension of the talkable time due to this can be maintained as it is.

[Brief description of the drawings]

FIG. 1 is a timing chart related to various communication signals shown to explain VOX control (transmission state instruction control) in an analog mobile phone according to one embodiment of the present invention.

FIGS. 2A and 2B are timing charts when a predetermined time set and counted by the VOX control described with reference to FIG. 1 is changed, wherein FIG. 2A is for a case where the predetermined time is too short, and FIG. This relates to a case where the predetermined time is too long.

FIG. 3 is a timing chart related to various communication signals shown for explaining VOX control in a conventional analog mobile phone.

[Explanation of symbols]

 a Voice status signal b Voice / silence detection status signal c Transmission status signal d Voice signal e Voice indication signal f Count status signal

Claims (2)

[Claims] 1. An audio state detecting means for detecting whether an audio state signal indicating an audio input from a transmitter under VOX control is in an active state or an inactive state; And a signal communication control means for transmitting a transmission state signal to a non-transmission state when the state is absent, wherein the voice state signal is transmitted during the VOX control. A sound instruction button for inputting a sound instruction signal indicating that the state is a state by pressing the instruction, and the signal communication control unit includes:
According to the sound indication signal, within a predetermined time, even if the sound state signal is regarded as the non-state by the sound state detection means, the sound state signal is regarded as the sound state and the transmission state signal is set to the transmission state. Analog mobile phone. 2. The analog mobile phone according to claim 1, further comprising: a counting unit that counts the predetermined time from the start of input of the sound instruction signal and outputs a count state signal,
An analog mobile phone according to claim 1, wherein said signal communication control means returns said transmission state signal to said non-transmission state when said state is absent after said predetermined time has passed according to said counting state signal.