JP3442189B2 - Vibrator device - Google Patents

Description

Detailed Description of the Invention

[0001]

The present invention relates to a TDD (Time Divisio).
The present invention relates to a vibrator device for detecting an incoming call to a handset of a digital cordless telephone adopting the (n Duplex) system by monitoring a received electric field level and notifying the user of the incoming call by vibration. The TDD method is a transmission / reception same-band method and is also called a ping-pong method, and is a method in which the same radio frequency is transmitted and received in time division for communication.

[0002]

2. Description of the Related Art Conventionally, a vibrator device for a digital cordless telephone has been used as an option for a handset carried by a user, detects a received electric field level in a certain section of a transmitted / received radio wave, and the received electric field level has a predetermined value. When it passed, it was judged as an incoming call and the vibrator was driven to notify the incoming call.

[0003]

However, the above-mentioned conventional vibrator device detects only the received electric field level in a certain section of the transmitted and received radio waves, so that the user is close to the radio base station or near the user. Even when another person receives an incoming call or when another person is talking on the phone, a high reception electric field level is detected by the notification information and the call signal, and it is mistakenly judged that the incoming call is to the own machine, and the vibrator malfunctions. There was a problem of being lost.

The present invention solves such a conventional problem, and an object of the present invention is to provide an excellent vibrator device capable of preventing a malfunction due to a position of a user, a usage situation of another person, or the like. .

[0005]

In order to achieve the above-mentioned object, the present invention uses the same radio frequency at regular intervals.
A device that performs communication by dividing it into a transmission channel and a reception channel.
In the location, a receiver for detecting a received electric field level of a radio wave, an A / D converter for converting the reception field level detected into a digital signal, wherein the receiving unit from the detection of the predetermined reception field level A synchronization unit that generates a timing signal after a certain period of time, a vibration unit that generates vibration to notify the user of an incoming call, and a certain reception on one channel.
The electric field level is detected and the timing from the synchronization unit
After the certain time based on the signal, the other channel
When the electric field level exceeding a predetermined value is detected, it is determined that the incoming call is received, and a control unit that vibrates the vibrating unit is provided.

[0006]

Therefore, according to the present invention, after detecting a certain constant reception electric field level, the reception electric field level is checked again after a predetermined time, and both the up and down radio waves in the TDD system are monitored, whereby the radio wave is detected. It is possible to distinguish whether it is the radio wave from the control channel of the base station or the radio wave from another person's incoming call or call from the incoming call to the own machine, and it is possible to prevent malfunction of the vibrator due to the position of the user or the usage situation of others. .

[0007]

1 shows the structure of a vibrator device according to an embodiment of the present invention. In FIG. 1, 1 is a receiving unit that detects the received electric field level of radio waves, 2 is an A / D converter that converts the detected received electric field level into a digital signal, and 3 is a receiving unit 1 that detects a constant received electric field level. The synchronizing unit 4 which generates a timing signal after a fixed time from the start of the operation is a control unit, and when the receiving unit 1 detects a constant receiving electric field level, the timing signal from the synchronizing unit 3 causes the receiving electric field level after a fixed time. Is checked, and if it exceeds a predetermined value, it is determined that the incoming call is received and the vibrating section 5 is vibrated. The vibrating unit 5 rotates the eccentric weight with a motor to generate vibration.

Next, the operation of the above embodiment will be described.
In a PHP (Personal Handy System) system, which is a next-generation digital cordless telephone system adopting the TDD system, four channels are multiplexed with 5 ms, which is a total of 2.5 ms for transmission and 2.5 ms for reception, as one frame. Therefore, the channel assigned to the own device rotates every 2.5 ms. The received electric field level detected by the receiver 1 is input to the A / D converter 2. A /
When the reception electric field level equal to or higher than the first threshold value TH1 is input, the D conversion unit 2 notifies the control unit 4 of the digitally converted reception electric field level and sends a start signal to the synchronization unit 3. The synchronization unit 3 notifies the control unit 4 of the activation signal, generates a timing signal after 2.5 ms based on the activation signal, and notifies the control unit 4 of the timing signal. The control unit 4 is shown in FIG.
When an incoming call is detected according to the incoming call algorithm shown in (1), the vibrating unit 5 is turned on to vibrate, and the user is notified of the incoming call.

In FIG. 2, the vertical axis represents the detected reception electric field level (analog value), and the horizontal axis represents time. At time t1, the detected reception electric field level is smaller than the first threshold value TH1, so the A / D conversion unit 2 determines that the level is invalid. Next, at time t2, since the detected electric field level is higher than the first threshold value TH1, the A / D conversion unit 2 determines that it is an effective level, and notifies the control unit 4 of the digitally converted reception electric field level. , And sends a start signal to the synchronization unit 3. The synchronization unit 3 notifies the control unit 4 of the activation signal, generates a timing signal after 2.5 ms based on the activation signal, and notifies the control unit 4 of the timing signal. The control unit 4 is 2.5
The received electric field level at time t6 after ms is checked, and it is the first
Since it is smaller than the threshold value TH1 of, it is determined that the call is not received. Next, at time t3, since the detected reception electric field level is higher than the second threshold value TH2, when the control unit 4 similarly examines the reception electric field level at time t7 2.5 ms later, Since it is larger than the threshold value TH1 of 1, it is determined to be an effective level. Next, the received electric field level detected at time t4 is larger than the first threshold value TH1 and the received electric field level at time t8 2.5 ms later is larger than the second threshold value TH2. Is also determined to be a valid level. Then, when the effective level continues for a plurality of times or more, it is determined that the incoming call is detected.

Therefore, in this embodiment, the conditional expression for detecting an incoming call is as follows. K = (first reception electric field level L1> first threshold value T
H1 + second reception electric field level L2> second threshold value T
H2) * (first reception electric field level L1> second threshold TH2 + second reception electric field level L2> first threshold TH1) Incoming detection = K1 + K2. ． ． , + Kn

The control channel signal from the radio base station is
Since it is a one-way channel, it does not meet the above conditional expression. Further, even when an incoming call or a call is made by another person, the received electric field level does not increase in both the transmission channel and the reception channel, and therefore the above conditional expression is not met. That is, the above conditional expression is satisfied only for an incoming call to the own device.

[0012]

As is apparent from the above-described embodiment, the present invention detects the reception electric field level at a certain level and then checks the reception electric field level again after a certain period of time to detect both the up and down radio waves in the TDD system. By monitoring the signal, it is possible to distinguish between the radio wave from the control channel of the wireless base station and the radio wave from another person's incoming call or call from the incoming call to the own machine. It is possible to prevent malfunction.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a vibrator device according to an embodiment of the present invention.

FIG. 2 is a timing diagram showing an operation in one embodiment of the present invention.

[Explanation of symbols]

1 receiver 2 A / D converter 3 synchronization section 4 control unit 5 Vibration part

Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) H04M 1/00 H04Q 7/38

Claims (3)

(57) [Claims] 1. The same radio frequency is used at regular intervals.
A device that performs communication by dividing it into a transmission channel and a reception channel.
In the location, a receiver for detecting a received electric field level of a radio wave, an A / D converter for converting the reception field level detected into a digital signal, wherein the receiving unit from the detection of the predetermined reception field level A synchronization unit that generates a timing signal after a certain period of time, a vibration unit that generates vibration to notify the user of an incoming call, and a certain reception on one channel.
The electric field level is detected and the timing from the synchronization unit
After the certain time based on the signal, the other channel
And an electric field level exceeding a predetermined value are detected, it is determined that the incoming call is received, and a vibrator unit is provided which vibrates the vibrating unit. 2. When a received electric field level after a predetermined time exceeds a threshold H2 larger than the threshold H1 after detecting a received electric field level exceeding the threshold TH1, or a threshold TH2. 2. When a received electric field level exceeding a certain level and a received electric field level exceeding a threshold value H1 after a certain period of time are detected, it is judged as an incoming call when these are continuously detected a plurality of times or more. Vibrator device. 3. The vibrator device according to claim 1, wherein the constant time for generating the timing signal is 2.5 ms.