JP3193642B2 - Receiving machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receiver of a data transmission apparatus which is activated when waiting for data transmission, and more particularly to a receiver which can reduce power consumption during standby.

[0002]

2. Description of the Related Art A conventional receiver will be described. A conventional receiver is, for example, a TDMA (Time Divisional Multip
le Access), if it is determined that a call is made in a specific slot, power is supplied to the entire receiver only at the timing of receiving the slot to determine whether or not the call has been made. ing.

[0003]

However, such a conventional receiver has a problem that power cannot be efficiently reduced because power is supplied to the entire receiver at a time. .

The present invention has been made in view of the above circumstances, and has as its object to provide a receiver capable of efficiently reducing power consumption.

[0005]

Means for Solving the Problems The above prior art invention of claim 1 for solving the problem of reception at the receiver, the receiving operation, in which the transmitting and receiving unit is input from the transceiver unit
Power is supplied to the reception electric field determination unit that determines whether the signal strength of the signal satisfies a predetermined fixed strength .
A first power switch, and the received signal has the predetermined strength.
If it is more degrees, a second power switch for supplying power to the call determination unit determines its own call is in the reception signal is the constant intensity or more, and if it is self-call, the to supply power to the control unit for processing the received signal
A third power switch, and only necessary parts are activated in accordance with the processing stage, thereby flexibly controlling power consumption and efficiently reducing power consumption. be able to.

According to a second aspect of the present invention, a power supply and a power supply signal are supplied from the power supply in the receiver, and the power supply is supplied from the power supply stop signal in the receiver. First, second, and third power switches that perform control to stop power supply from a power source, and output a power supply signal to the first power switch at regular intervals.
After a certain period of time after outputting the power supply signal, a timer unit that outputs a power stop signal to the first power switch , and receives a signal that is activated by being supplied with power by the first power switch. a transceiver, the signal strength of the signal transmitting and receiving unit has <br/> received is equal to or greater than or equal to a predetermined intensity, the power supply signal to said second power switch as long as the constant intensity over outputs, full to the constant intensity
A reception electric field determining unit for outputting a power stop signal to the second power supply switch unless the is started is supplied with power by the second power supply switch receives an input of a received signal from the transceiver unit, self It is determined whether or not has been called, and if it is determined that it has been called, a power supply signal is output to the third power switch. If it has not been called, power is shut off to the third power switch. A call determination unit that outputs a signal, and a control unit that is activated by being supplied with power by the third power switch and performs processing in response to an input of a received signal. By activating only the necessary parts, power consumption can be flexibly controlled and power consumption can be reduced efficiently.

[0007]

[0008]

Embodiments of the present invention will be described with reference to the drawings. The receiver (this device) according to the present invention comprises:
By activating the receiving unit, the call determining unit, and the control unit in stages, the power consumption can be reduced efficiently. In particular, in the case of a portable receiver using a battery, the power consumption can be reduced efficiently.

This apparatus will be described with reference to FIGS. 1 and 2.
FIG. 1 is a configuration block diagram of the present apparatus, and FIG. 2 is a timing chart illustrating the operation of the present apparatus. As shown in FIG. 1, the present apparatus includes a transmitting / receiving unit 1, a reception electric field determination unit 2, a timer unit 3, a control unit 4, a call determination unit 5,
It is mainly composed of a first power switch 6, a second power switch 7, a third power switch 8, and a power unit 9.

Hereinafter, each part of the apparatus will be described in detail.
The transmission / reception unit 1 is activated by receiving power supply from the first power switch 6, transmits a signal input from the control unit 4, and controls the received signal (reception signal) with the reception electric field determination unit 2. This is output to the unit 4 and the call determination unit 5.

The reception electric field determination unit 2 is activated by receiving power from the first power switch 6 similarly to the transmission / reception unit 1, and determines the signal strength of the reception signal input from the transmission / reception unit 1. Has a strength higher than a predetermined value, a signal to be turned “ON” to the second power switch 7 (hereinafter, referred to as a “power supply signal”) is output.

If the signal strength of the reception signal input from the transmission / reception section 1 does not reach a predetermined strength, the reception electric field determination section 2 sends a signal to the second power switch 7 to be turned "OFF" (hereinafter referred to as "OFF"). This is referred to as a “power stop signal”. Here, it is conceivable that the power supply stop signal is simply realized in a state where no signal is input from the reception electric field determination unit 2 to the second power switch 7 (signal non-input state).

In the claims, the transmission / reception unit 1 and the reception electric field determination unit 2 are collectively referred to as "transmission / reception means". Also, here, the reception electric field determination unit 2 controls whether or not to perform a call determination on the reception signal according to the strength of the reception signal. However, other conditions, for example, the reception electric field determination unit 2 It is also conceivable that a self-call is roughly determined, and a power supply signal is output to the second power switch 7 when it is roughly determined that the self is being called in the rough determination.

The timer unit 3 has first and second time intervals set in advance, and outputs a power supply signal to the first power switch 6 at regular intervals indicated by the first time interval. From the first time interval to the second time interval,
A power supply stop signal is output to the power supply switch 6 of FIG.

The control unit 4 is activated by receiving power supply from the third power switch 8 and performs a receiving operation. When performing a transmitting operation, the control unit 4 externally supplies the third power switch 8. To “ON” to receive power from the power supply 9, and further, although not shown, the first power switch 6
And outputs a signal to be transmitted to the transmission / reception unit 1 by activating the transmission / reception unit 1 by outputting a power supply signal.

The call judging unit 5 is activated by receiving power supply from the second power switch 7 and receives a received signal from the transmitting / receiving unit 1 to judge whether or not it has been called.
When it is determined that the call is made, a power supply signal is output to the third power switch 8.

When the supply of power from the second power switch 7 is stopped, the call determination section 5 outputs a power stop signal to the third power switch 8. It is conceivable that this power stop signal is also realized simply in a state in which no signal is input from the call determination unit 5 to the third power switch 8 (no signal input state).

The first power switch 6 receives an input of a power supply signal, connects the power supply unit 9 to the transmission / reception unit 1 and the reception electric field determination unit 2, and supplies power to them.
The first power switch 6 receives a power stop signal from the timer unit 3 and stops power supply.

The second power switch 7 receives a power supply signal from the reception electric field determination unit 2, connects the power supply unit 9 to the call determination unit 5, and supplies power to it.
Further, upon receiving a power supply stop signal from the reception electric field determination unit 2, the power supply is stopped.

The third power switch 8 receives a power supply signal from the call judging unit 5, connects the power unit 9 to the control unit 4, and supplies power to it. In response to the input of the power supply stop signal from the control unit 5, the power supply is stopped.

The third power switch 8 is connected to the control unit 4.
When performing transmission, it is conceivable that an input of a power supply signal and a power supply stop signal is received from an external source other than the above-described units, but here, since the problem is only at the time of reception,
Description is omitted for simplicity.

The power supply unit 9 includes a timer unit 3, a first power switch 6, a second power switch 7, and a third power switch 8.
And supplies power to them.

Next, the operation of the present apparatus will be described with reference to FIG. First, the timer unit 3 outputs a power supply signal to the first power switch 6 at time t1 before the start of a slot to receive a signal. Then, the first power switch is turned “ON”, and the transmission / reception unit 1 and the reception electric field determination unit 2 are activated.

Then, the transmission / reception unit 1 receives the signal, and the received signal is output to the reception electric field determination unit 2. Here, when the reception electric field determination unit 2 determines that the signal strength of the reception signal is equal to or higher than a predetermined value, a power supply signal is output to the second power switch 7 and the call determination unit 5 is activated.

Then, the call judging unit 5 receives an input of the received signal from the transmitting / receiving unit 1, and judges whether or not the call itself is called. Here, if it is determined that the user is not called, the call determination unit 5 does not output a power supply signal to the third power switch 8.

Then, at time t3, the timer unit 3 outputs a power stop signal to the first power switch 6, and the transmission / reception unit 1 and the reception electric field determination unit 2 stop operating. At this time,
Since the operation of the reception electric field determination unit 2 is stopped, the reception signal is not output from the reception electric field determination unit 2 and the signal intensity of the output signal becomes less than a certain level. Since the output is made and the second power switch 7 does not supply power to the call determination unit 5, the operation of the call determination unit 5 is also stopped.

In this way, in the present apparatus, only the timer section 3 operates. Eventually, at time t4, which indicates a fixed period measured by the timer unit 3, the timer unit 3 outputs a power supply signal to the first power switch 6, and the transmission / reception unit 1 and the reception electric field determination unit 2 are activated. You.

At time t5, when the reception electric field determination section 2 determines that the signal strength of the reception signal received by the transmission / reception section 1 has become equal to or higher than a predetermined value, it outputs a power supply signal to the second power switch 7 and calls The determination unit 5 is activated.

Then, the call judging section 5 receives the input of the received signal, and judges whether or not it is called. Here, when the user is called, the call determination unit 5 outputs a power supply signal to the third power switch 8.
In FIG. 2, it seems that the call determination unit 5 that has received the input of the received signal immediately determines whether or not there is a call.
This is because it is assumed that the time required for the determination is short. This is because the paging control signal for determining the paging is located at the head of the received signal, and the paging control signal is usually negligibly short compared to the entire length of the received signal. , Such an assumption can be considered valid.

Then, the control unit 4 is activated, and the received signal received by the transmission / reception unit 1 is input to the control unit 4 and processed. Then, at time t6, the power supply stop signal from the timer unit 3 to the first power switch 6 stops the operation of the transmission / reception unit 1 and the reception electric field determination unit 2, and the operation of the reception electric field determination unit 2 stops the operation of the second power supply. When a power stop signal is output to the switch 7, the operation of the call determination unit 5 stops,
A power stop signal is output to the third power switch 8 when the operation of the call determination unit 5 is stopped, and then the operation of the control unit 4 is stopped, and in this apparatus, only the timer 3 is operated again.

According to this device, the power of each unit is supplied stepwise according to the stage of the receiving process.
There is an effect that power consumption can be efficiently reduced.

[0032]

According to the first and second aspects of the present invention, power is supplied from the first power switch only for the time when a signal is to be received.
The transmission / reception unit and the reception electric field determination unit are activated by the power supply to receive the signal, and determine whether the received signal has a certain strength or more.
Power from the second power switch
When a call is determined by activating the call determination unit by the power supply and determining that the call is being made, the power from the third power switch is output.
Since the receiver activates the control unit and processes the received signal, only the necessary parts are activated according to the processing stage, so that the power consumption can be controlled flexibly and efficiently consumed There is an effect that power can be reduced.

[Brief description of the drawings]

FIG. 1 is a configuration block diagram of the present apparatus.

FIG. 2 is a timing chart illustrating the operation of the apparatus.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Transmission / reception part, 2 ... Reception electric field judgment part, 3 ... Timer part, 4 ... Control part, 5 ... Call judgment part, 6 ... 1st power switch, 7 ... 2nd power switch, 8 ... 3rd power supply Switch, 9 ... power supply

Claims (2)

(57) [Claims] In a receiving operation, a transmitting / receiving unit and a receiving signal input from the transmitting / receiving unit are transmitted.
No. strength first supplying power to the or determining received electric field determining portion meet certain strength that is set in advance
A power switch, when the received signal is the constant intensity above a second conductive to supply power to the call determination unit determines its own call
Wherein the source and the switch is in the reception signal is the constant intensity or more, and if it is self-call, that a third power switch for supplying power to the control unit for processing the received signal And receiver. 2. A first, second and third power supply and a power supply signal are supplied from the power supply when the power supply signal is input, and the power supply from the power supply is stopped when the power supply stop signal is input.
A power supply signal to the first power switch at regular time intervals, and a power supply stop signal to the first power switch at a fixed time after outputting the power supply signal. a timer unit for outputting said is activated first by even powered by the power switch, and a transceiver for receiving a signal, the signal strength of the signal the receiving unit receives whether it is above a certain intensity The power supply signal is output to the second power switch if the strength is equal to or higher than the predetermined strength, and the power is less than the predetermined strength.
If so, a reception electric field determination unit that outputs a power stop signal to the second power switch, and is activated by being supplied with power by the second power switch, and receives an input of a reception signal from the transmission / reception unit. It is determined whether or not it has been called, and if it is determined that it has been called, a power supply signal is output to the third power switch. And a control unit that is activated by being supplied with power by the third power switch and performs processing in response to input of a received signal.