JPH08149560A - Cordless telephone set - Google Patents

Abstract

PURPOSE: To shorten the lag of the sounding start of each cordless telephone set by stopping interrupted reception for a certain time to set the radio wave reception wait state at the time of coincidence between the maker code sent from a master set and a registered maker code. CONSTITUTION: A control circuit of a cordless telephone master/slave set normally performs interrupted reception, and wen the carrier of a control channel is detected, this control circuit stops interrupted reception and enters into the wait state that a signal is received with a tuner on, and a timer 1 is started. A command from the master set is received, and if its ID doesn't coincide with ID of the control circuit itself and the maker code of the terminating command coincides with the maker code of ID of the control circuit itself, it is discriminated whether the interrupted reception stop mode is indicated or not. When this mode is indicated, a timer 2 is started, and the control circuit restarts interrupted reception by its expiration. Thus, the control circuit continues reception when receiving the terminating command including the prescribed maker code.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called cordless telephone which can make a call using a wireless line.

[0002]

2. Description of the Related Art Conventionally, cordless telephone handsets generally perform intermittent reception in order to save power consumption. Intermittent reception does not always turn on the power of the tuner and keep it in the reception standby state when the slave unit is in the idle state, but turns on / off the power of the tuner at regular intervals.
Repeating the above steps, the carrier of the radio wave is monitored while the power of the tuner is ON, and when the carrier is detected, the reception standby state is set for a certain period of time to wait for command reception from the master unit.

[0003]

However, in the above-mentioned conventional example, the power consumption is smaller than when the power of the tuner is always turned on, but on the other hand, while the power of the tuner is off, an incoming command from the master unit is received. Is ignored, so
There was a problem that the response of the handset to an incoming call was delayed. Further, this problem is that the time interval between the start of ringing of the first cordless telephone and the start of ringing of the last cordless telephone becomes large when the cordless telephones are sequentially received in a telephone exchange device to which a plurality of cordless telephones are connected. It was also a point.

[0004]

In order to solve the above problems, according to the present invention, in a cordless telephone, a slave unit performs intermittent reception, and a unit that recognizes a manufacturer code sent from a master unit. If the recognized maker code matches the pre-registered maker code, by providing a means to stop intermittent reception for a certain period of time and put it in a radio wave reception standby state, a telephone exchange in which a plurality of cordless telephones are connected Also in the device, the time lag of the start of ringing of each cordless telephone ringing by the incoming call processing is shortened.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a telephone exchange device accommodating a cordless telephone adopting the present invention.
In FIG. 1, the telephone exchange 3 has a digital communication network (ISDN) 1 and an analog communication network (PST) via a digital interface 7 and an analog interface 8, respectively.
N) 2 is connected. Further, the telephone exchange device 3 is connected to extension-only telephones 4a and 4b and extension cordless telephones 4c, 4d, and 4e through an extension interface 5. The voice information from each of these interfaces is exchanged within the communication path 6, and the control circuit 9 controls each interface and the communication path. Control circuit 9
A program for executing the control is stored in the ROM 10, and data required for the control is written to and read from the RAM 11.

FIG. 2 is a block diagram of a cordless telephone base unit. The cordless telephone base unit is connected to the line from the telephone exchange device 3 via the interface 14, and the voice information is sent to the tuner 12 via the voice processing circuit 13. The control circuit 1 controls each circuit of the base unit of the cordless telephone and exchanges control signals with the base unit.
5 does. A program for controlling the master unit of the cordless telephone is stored in the ROM 16, and writing and reading of data required for control are performed to the RAM 17.

FIG. 3 is a block diagram of a cordless telephone handset. The cordless telephone handset wirelessly communicates with the cordless telephone handset by the tuner 18, the voice of the handset is transmitted to the receiver 20 through the voice processing circuit 19, and the voice from the handset enters from the microphone 21 and goes in the reverse path. Is passed through to the parent machine. The control circuit 22 controls the voice processing, detects the input of the key 25, and controls the LCD 26 display and the LED 27 display. A program for controlling these cordless telephone slave units is stored in the ROM 23, and writing of data necessary for control,
Reading is performed on the RAM 24.

FIGS. 4 to 6 are flowcharts showing the control of the control circuit 22 of the cordless telephone handset adopting the present invention. In these flow charts, only main parts relating to the present invention are shown, and control parts not particularly related to the present invention are omitted.

First, the description of FIGS. 4 and 5 will be given. The control circuit 22 of the cordless telephone handset normally performs intermittent reception (control of repeatedly turning the tuner on and off at constant time intervals to reduce power consumption) (S401), but when a carrier of the control channel is detected ( (S402), the intermittent reception is stopped, and a standby state for receiving a signal with the tuner turned on is entered (S403), and the timer 1 is started (S404).

Then, the command reception from the master unit is monitored (S405), but if the timer 1 times out (S410) without receiving the command from the master unit,
Again, it returns to the discontinuous reception state. (Normally, the timer 2 is not started, so it is in the time-out state.) However,
When the command from the base unit is received (S405), the I
It is determined whether D matches with his own ID (S406), and ID
Match and if it is an incoming command (S40
7) The incoming call process is performed (S408), and if it is another command, the command process is performed (S409).

If the IDs do not match (S406), the maker code of the incoming command matches the maker code of the user's own ID, or the RAM2 is stored in advance.
If it coincides with the manufacturer code registered in No. 4 (S412), it is judged whether it is the mode for stopping the intermittent reception due to the coincidence of the manufacturer code (S413), and if it is the mode, start timer 2 (already timer 2). If is started, it is restarted (S414).
The timer 2 is set longer than the timer 1. The monitoring of the timer 2 is performed in (S411),
Due to the time-out, the intermittent reception is resumed. That is, if the command is not received after the carrier is detected in (S402), the timer 1 times out, and the reception is returned to the intermittent reception again. If the command of the ID having the registered manufacturer code is received, the timer 1, Alternatively, the longer timer of the timer 2 times out, and the intermittent reception is resumed.

As described above, when the incoming command including the predetermined maker code is received continuously, the incoming command for itself can be promptly detected.

Next, FIG. 6 will be described. FIG. 6 relates to the method of registering and deleting the manufacturer code to be compared, and the setting of the mode for stopping the intermittent reception when the manufacturer code matches. Registration and deletion of the manufacturer code are performed using the key 25 of the child device. The key 25 includes a [Setting] key in addition to the numeric keypad, and [Setting] → [1] → [*] → [2] → [5] → [5] →
When the [#] key is pressed (S501), the manufacturer code 255 is registered in the RAM 24 (S502), and [Setting] →

[0] → [*] → [2] → [5] → [5] →
When the [#] key is pressed (S501), the manufacturer code 255 is deleted from the RAM 24 (S502). The setting of the intermittent reception stop mode is the same, so click [Settings] →
Press the keys [2] → [*] → [1] → [#] (S
503) and the manufacturer code match, the mode is set to stop the intermittent reception (S504), and [Setting] → [2] →
[*] →

Press the key [0] → [#] (S503)
And the maker code match, the mode becomes a mode in which the intermittent reception is not stopped (S504).

In the first embodiment, the timer 2 was restarted every time the manufacturer code was received. However, the timer 2 is restarted only at the first command in which the manufacturer code matches.
The timer 2 does not have to be restarted by the second and subsequent commands. Although the manufacturer code is registered and deleted in the RAM, the manufacturer code may be registered and deleted in the RAM, EEPROM, magnetic storage medium, optical disk, etc. backed up by the battery, or in the telephone exchange device. A method of registering in a storage medium and notifying the handset by radio waves is also possible. In addition, the intermittent reception registration mode may be set using a physical switch.
The mode may be switched by a notification from the telephone exchange device.

If the same maker has two or more maker codes, those maker codes can be registered, and the maker code of a cordless telephone set of another maker connected to the same telephone exchange device, or its slave unit. Needless to say, it may be the manufacturer code of a cordless phone of another manufacturer within the range where radio waves reach.

FIG. 7 is a flow chart showing another embodiment of registering the manufacturer code. Cordless telephone handset [Setting] → [3] → [*] →

[0]
→ When the [#] key is pressed, a mode for automatically registering the manufacturer code is set (S601). In this mode, when an incoming call is made to the master unit to which the manufacturer code is to be registered, the command sent from the master unit is received (S603), and the manufacturer code is read from the ID and registered (S604). This maker code registration mode is valid until the timer 3 times out (S602, S605).

[0018]

As is apparent from the above description, according to the present invention, in the cordless telephone, the slave unit performs the intermittent reception, the means for recognizing the maker code sent from the master unit, and the above-mentioned means. If the recognized maker code matches the pre-registered maker code, a telephone exchange device to which a plurality of cordless telephones are connected is provided with means for stopping intermittent reception for a certain period of time to enter a radio wave reception standby state. Also in the above, it is possible to reduce the time lag of the start of ringing of each cordless telephone ringing in the incoming call processing.

The present invention is particularly effective when a plurality of cordless telephones manufactured by the same manufacturer are connected to the telephone exchange device.

Further, by adding or deleting the manufacturer code, it is possible to deal with a change in the usage status.

Further, the manufacturer code can be easily registered by the radio wave from the master unit.

Further, it is possible to prohibit the discontinuation of the intermittent reception according to the manufacturer code according to the usage situation.

[Brief description of drawings]

FIG. 1 is a block diagram showing the structure of a telephone exchange device.

FIG. 2 is a block diagram showing a structure of a cordless telephone base unit.

FIG. 3 is a block diagram showing a structure of a cordless telephone handset.

FIG. 4 is a flowchart showing the control (1) of the control circuit of the cordless telephone handset according to the present invention.

FIG. 5 is a flowchart showing control (2) of the cordless telephone handset according to the present invention.

FIG. 6 is a flowchart showing registration control of the cordless telephone handset according to the present invention.

FIG. 7 is a flowchart showing another registration control of the cordless telephone handset according to the present invention.

Claims (10)

[Claims] 1. In a cordless telephone, a slave unit has means for performing intermittent reception, a means for recognizing a maker code sent from a master unit, and the recognized maker code matches a maker code registered in advance. If so, a cordless telephone having means for stopping intermittent reception for a certain period of time to enter a radio wave reception standby state. 2. The cordless telephone according to claim 1, further comprising means for later additionally registering or deleting the previously registered maker code. 3. The cordless telephone according to claim 1 or 2, wherein a RAM or a battery-backed RAM is used as the manufacturer code storage means. 4. A cordless telephone according to claim 1 or 2, wherein an EEPROM is used as a storage means for the manufacturer code. 5. A cordless telephone according to claim 1 or 2, wherein a magnetic storage medium is used as a storage means for the manufacturer code. 6. A cordless telephone according to claim 1 or 2, wherein an optical disk is used as a storage means for the manufacturer code. 7. The cordless telephone set forth in claim 1, wherein the manufacturer code is registered in a telephone exchange device to which the parent device is connected, the telephone exchange device notifies the parent device, and the signal is transmitted via radio waves. A cordless telephone that is registered as a handset. 8. The cordless telephone set forth in claim 1, wherein the operation of the means for stopping the intermittent reception,
A cordless telephone having means for setting non-operation. 9. In the cordless telephone set forth in claim 1, means for setting a slave unit in a mode for registering a manufacturer code, and a manufacturer code included in a command received from the master unit in the registration mode. A cordless telephone having means for registering a telephone. 10. The cordless telephone according to claim 1, wherein the manufacturer code registered in advance is the manufacturer's own code.