JP2838460B2 - Connection device to public telephone line in PHP - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a PH (Personal Handy Phone) which can be connected to a general telephone line.
P relates to a connection device to a general telephone line.

[0002]

2. Description of the Related Art A PHP connects to a public telephone network or an ISDN network via a base station to make a telephone call, and can make a telephone call from anywhere within a predetermined range or while moving. is there. Conventionally, as telephones that can make a call while moving, there are a cordless telephone and a cellular (mobile communication).

A cordless telephone requires two sets of a base unit (for indoor use) and a sub unit (mobile telephone), and connects the sub unit to a public telephone line via the base unit to make a call. . In addition, digital cellular (mobile communication) is a method of connecting to a public telephone network or an ISDN network via a number of base stations, control stations, and cellular telephone exchanges like a mobile telephone to perform a telephone call.

[0004]

As described above, the cordless telephone is connected from the slave unit to the public telephone line via the master unit to make a telephone call, so that the call fee is low. However, there is a problem that the two sets are required and the slave unit cannot be used as a mobile phone. In addition, since cellular (mobile communication) passes through a large number of base stations, control stations, and cellular telephone exchanges, there is a problem that the equipment is large-scale and the call charge is high. Since PHP is a system that connects to the public telephone network via a terrestrial base station, the size of the equipment is smaller than that of cellular and the telephone charge is low, but the telephone charge is high in that it cannot be directly connected to the public telephone line. There was a problem of becoming.

[0005] The present invention has been made in view of the above points, and it is an object of the present invention to provide an apparatus for connecting a public telephone line to a public telephone line in a PHP that can connect the PHP to a public telephone line without passing through a base station.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a PHP which can communicate outdoors through a base station;
A PHP adapter provided indoors is provided, and the PHP adapter and the PHP are configured to be connected by a cable. The PHP adapter is connected to a control circuit, a speech network circuit and a dialer circuit, and when the PHP is connected, a storage battery of the PHP. And a function of connecting the PHP to a public telephone line by connecting the PHP to a public telephone line by connecting the PHP and making the PHP off-hook, so that the control circuit, the speech network circuit and the dialer circuit are activated. Key data is input to the dialer circuit by an operation, dial data is sent out to the public telephone line through the speech network circuit, a call is made to the other party, and a function of making a call from the PHP is possible;
The control circuit, the speech network circuit, and the dialer circuit are activated by off-hooking the PHP at the time of an incoming call, and have a function of enabling the PHP to talk with the other party.

[0007] The PHP adapter is characterized by having an LCR (minimum cost route selection circuit) and automatically selecting a cheaper toll line.

Further, the PHP adapter has an answering machine unit, and when there is an incoming call while the PHP is not connected, or when the incoming call is not off-hook while the PHP is connected, the answering machine is provided. The unit is activated and can record messages.

[0009]

According to the present invention, the connection device to the public telephone line in the PHP is configured as described above.
By connecting the HP with a cable, the PHP can be connected to a public telephone line, and a call can be made by key operation of the PHP. In addition, it is possible to talk with the other party by off-hooking the PHP when receiving a call. The PHP adapter is LCR
(Minimum cost route selection circuit), a cheaper toll line can be automatically selected. Also, since the PHP adapter has an answering machine, if there is an incoming call while the PHP is not connected, or if the incoming call does not go off-hook while connected, the answering machine operates and the message is sent. Can be recorded.

[0010]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a diagram showing the appearance of a connection device to a public telephone line in the PHP of the present invention. PHP Adapter 2
0 and the PHP 10 can be connected via a connector 48 by a cable 40. The PHP adapter 20 is connected to an AC power supply via a power supply line 50 and to a public telephone line via a modular cord 51.

FIG. 1 shows PHP10 and PHP adapter 2
FIG. 3 is a block diagram illustrating a circuit configuration of a zero. PHP10 is R
F circuit 11, IF circuit 12, synthesizer circuit 13,
The configuration includes a control circuit 14, a storage battery 15, and an antenna 16. The RF circuit 11 has a high frequency (1.
9 GHz). IF circuit 1
Reference numeral 2 has a function of lowering the transmission radio wave to a detectable frequency. The synthesizer circuit 13 is a frequency generating circuit that generates each frequency. In the block diagram of the PHP 10, descriptions of a microphone, a speaker, a display unit, and the like are omitted.

The PHP adapter 20 is connected to the control circuit 2
1. LCR (minimum cost path selection circuit) 22, control circuit / dialer circuit / speech network circuit 23, answering machine control circuit 24, ringer speaker 25, ringer circuit 26, recording / playback circuit 27, and power supply circuit 28 Configuration.

The cable 40 has a data signal line 41,
Clock signal line 42, latch signal line 43, audio signal line 4
4. It comprises a detection signal line 45 and charge lines 46 and 47.

In the apparatus for connecting to a public telephone line in the PHP having the above configuration, the PHP adapter 20 and the PHP 1
When it is connected to 0 by a cable 40, a circuit configuration as shown in FIG. 1 is obtained, and a sleep signal is input from the control circuit 14 to the RF circuit 11, the IF circuit 12, and the synthesizer circuit 13, and each circuit enters a sleep state.

By off-hook PHP 10,
The control circuit 14 of the PHP 10 and the control circuit / dialer circuit / speech network circuit 2 of the PHP adapter 20
Data signals are exchanged by the control circuit 3 and the PHP 10 is connected to a public telephone line. Key data is input to the control circuit, dialer circuit, and dialer circuit of the speech network circuit 23 by operating the key 10a of the PHP 10, dial data is sent to the public telephone line via the speech network circuit, and the other party is called. Can talk.

As shown in FIG.
The control circuit 14 releases the sleep state of the RF circuit 11, the IF circuit 12, and the synthesizer circuit 13 by unplugging the connector 48 of the cable 40 from, and the respective circuits are activated, and the base station (not shown) and the antenna 16 Can be transmitted and received wirelessly.

The detection signal line 45 detects that the PHP 10 is connected to the PHP adapter 20 and sends the detection signal from the control circuit of the PHP adapter 20 to the dialer circuit / speech network circuit 23.
Is a signal line for transmission to the control circuit 14 of FIG. This P
Means for detecting that the PHP 10 is connected to the HP adapter 20 include a method of detecting the state of charge of the storage battery 15 of the PHP 10 and a method of electrically detecting that the connector 48 is connected.

The PHP adapter 20 and the PHP10
When there is an incoming call in a state where the connection is established, the control circuit, dialer circuit,
When each circuit of the speech network circuit 23 is in the operating state, the PHP 10 can talk with the other party.

Further, the PHP adapter 20
When receiving the dial data from 0, it is equipped with an LCR (minimum cost route selection circuit) so that a cheaper toll line can be automatically selected.

The PHP adapter 20 includes an answering machine control circuit 24 and a recording / playback circuit 27.
0 is not connected, or if there is an incoming call while the PHP 10 is connected and the telephone is not off-hook after a predetermined time elapses from the incoming call, the answering phone control circuit 24 and the recording / playback The circuit 27 is activated and a message can be recorded.

In the above-described embodiment, the RF circuit 11 to the synthesizer circuit 13 of the PHP 10 are put into a sleep state at the time of connection. However, the present invention is not limited to this. May be configured. With this configuration, it is possible to receive an incoming call from the base station even during connection.

[0022]

As described above, according to the present invention, the following excellent effects can be obtained. (1) Since a public telephone line can be used by connecting the PHP and the PHP adapter, the call charge is reduced. (2) PHP can be used as a mobile phone outdoors and as a general phone indoors. (3) When connected to a PHP adapter, the storage battery of PHP can be charged. (4) A base unit (base set) is not required to connect to a public telephone line indoors. (5) Voice recording can be performed. (6) Equipped with LCR (minimum cost route selection circuit), cheaper toll line can be automatically selected. (7) While connected to the PHP adapter, it is possible to perform both a wired incoming call via the adapter and a wireless incoming call via the base station.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a PHP and a PHP adapter and a connection state thereof.

FIG. 2 is a diagram showing an appearance of a connection device to a public telephone line in the PHP of the present invention.

[Explanation of symbols]

Reference Signs List 10 PHP 11 RF circuit 12 IF circuit 13 Synthesizer circuit 14 Control circuit 15 Storage battery 16 Antenna 20 PHP adapter 21 Control circuit 22 LCR 23 Control circuit / Dialer circuit / Speech network circuit 24 Answering machine control circuit 25 Ringer speaker 26 Ringer circuit 27 Recording / recording Regeneration circuit 28 Power supply circuit

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H04M 1/00 H04M 1/26 H04M 1/65

Claims (3)

(57) [Claims] Claims: 1. A PHP capable of talking outdoors through a base station
And a PHP adapter provided indoors, the PHP adapter and PHP are configured to be connectable by a cable, and the PHP adapter is connected to a control circuit, a speech network circuit and a dialer circuit, and PHP. And a charging means for charging the storage battery of the PHP, and by connecting the PHP and off-hooking the PHP, the control circuit, the speech network circuit and the dialer circuit are activated, and the PHP is connected to a public telephone line. A function of connecting the key data to the dialer circuit by operating the key of the PHP, transmitting dial data to a public telephone line through the speech network circuit, calling the other party, and making a call from the PHP. Off-hook said PHP when receiving a call More, the control circuit, speech network circuit and dialer circuit becomes operation state, the connection device to the public telephone line in PHP, characterized by comprising a function capable of calling the PHP and the other side. 2. An apparatus for connecting to a general telephone line in PHP, wherein the PHP adapter comprises an LCR (least cost route selection circuit) and automatically selects a cheaper toll line. 3. The PHP adapter includes an answering machine, which is used when there is an incoming call while the PHP is not connected, or when the PHP is not off-hook even if there is an incoming call while the PHP is connected. The answering machine is activated and a message can be recorded.
Connection device to public telephone line in HP.