Communication system of portable communication terminal, incoming call control system of portable communication terminal and incoming call notifying device of portable communication terminal

• US 6,188,916 B1
• Filed: 11/20/1997
• Issued: 02/13/2001
• Est. Priority Date: 03/22/1996
• Status: Expired due to Term

• Current Assignee: Kyocera Corporation
• Original Assignee: Kyocera Corporation
• Inventors: Sasaki, Takaaki, Yoshimura, Kenichi, Iwabuchi, Kazuhiro, Uchino, Akihiko, Noda, Masanobu, Nakagaki, Syuji, Saito, Masayuki, Nakazato, Kouji
• Primary Examiner(s): Pham, Chi H.
• Assistant Examiner(s): Pham, Brenda H.
• Application Number:
  US08/952,542
• Time in Patent Office: 1,181 Days
• Field of Search: 370/336, 370/337, 370/345, 370/347, 370/442, 370/311, 370/313, 370/318, 370/350, 455/567, 455/426, 455/403
• US Class Current: 455/567
• CPC Class Codes: H04M 19/047 Vibrating means for incoming calls
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

The malfunction of a vibrator as a drawback of a conventional independent vibrator type portable terminal is obviated. A communication system of a portable communication terminal comprises a portable communication terminal capable of movably communicating with another communication terminal via radio communication with a base station, and peripheral equipment which performs a predetermined operation via radio communication with the portable communication terminal. The portable communication terminal transmits a radio signal to the peripheral equipment by using a time division multiplex access system for exchanging signals by putting data on a time slot as the radio communication between the portable communication terminal and the peripheral equipment and using the time slot in a time zone excluding other time zones in which the portable communication terminal is transmitting a radio signal to the base station. Thus the radio wave transmitted from the portable communication terminal to the peripheral equipment is prevented from being jammed by the radio wave transmitted from the portable communication terminal to the base station.

Claims

1. A communication system of a portable communication terminal comprising:

a portable communication terminal capable of movably communicating with another communication terminal via radio communication with a base station, and

peripheral equipment which performs a predetermined operation via radio communication with the portable communication terminal, wherein

the portable communication terminal transmits a radio signal to the peripheral equipment by using a time division multiplex access system for exchanging signals by putting data on a time slot as the radio communication between the portable communication terminal and the peripheral equipment and using

the time slot in a time zone excluding other time zones in which the portable communication terminal is transmitting a radio signal to the base station.

2. A communication system of a portable communication terminal as claimed in claim 1, wherein an incoming call notifying device is used for the peripheral equipment;

and when an incoming call signal is input to the portable communication terminal from the base station, the portable communication terminal transmits a radio signal to the incoming call notifying device so as to make the incoming call notifying device perform an incoming call notifying operation.

3. A communication system of a portable communication terminal as claimed in claim 1, wherein the data length of a time slot to the peripheral equipment is equalized in any one of cases where the time slot is in either full-rate mode or half-rate mode.

4. A communication system of a portable communication terminal as claimed in claim 2, wherein the portable communication terminal transmits to the incoming call notifying device an incoming call signal and an ID signal characteristic of the incoming call signal;

the incoming call notifying device decides whether the ID signal conforms to the data stored in an intrinsic memory; and

when the ID signal and the data conform to each other, the incoming call notifying device performs an incoming call notifying operation.

5. An incoming call control system of a portable communication terminal comprising a portable communication terminal body and an incoming call device for notifying a user about an incoming call,

wherein the portable communication terminal body is provided with a first transmission unit for communicating with a base station via a first radio wave and a second transmission unit for communicating with the incoming call device, the second transmission unit being capable of transmitting a second radio wave other than the first radio wave;

wherein the second radio wave is used to transmit an ID code from the portable communication terminal body to the incoming call device which compares the ID code with an ID code stored in the incoming call device; and

wherein the user is notified of an incoming call only when the ID code transmitted from the portable communication terminal body conforms to the ID code stored in the incoming call device.

6. An incoming call control system of a portable communication terminal as claimed in claim 5, wherein the ID code is set in the incoming call device by transmitting the ID code set on the side of the portable communication terminal via radio to the incoming call device through a ten-key keyboard of the portable communication terminal body.

7. An incoming call control system of a portable communication terminal as claimed in claim 5, wherein the ID code is writable to the storage device of the incoming call device by connecting a signal line to an external device.

8. An incoming call control system of a portable communication terminal as claimed in claim 5, wherein incoming call transmission means on the portable communication terminal side comprises at least an antenna, a modulator for transmitting an incoming call identifying signal through pulse modulation, a crystal oscillator, control means and a memory;

reception means on the incoming call device side comprises at least an antenna, a high-frequency amplifier circuit for amplifying the signal transmitted through the pulse modulation, a superregenerative detection circuit for detecting the amplified signal, a filter, control means, a memory and a motor, whereby an incoming call is transmitted to the portable communication terminal side.

9. An incoming call control system of a portable communication terminal, comprising an incoming call notifying device, wherein when an incoming call is received by the portable communication terminal, an ID signal is transmitted from the portable communication terminal via radio to the incoming call notifying device;

and the incoming call notifying device performs an incoming call notifying operation after the incoming call notifying device detects the ID signal transmitted by the portable communication terminal, wherein

a data format of the ID signal transmitted from the portable communication terminal to the incoming call notifying device has a bit synchronizing frame for use in clock regeneration by the incoming call notifying device,

a word synchronizing frame for use in frame synchronization for the acquisition of ID information, and

an ID information frame for loading ID information stored in the portable communication terminal.

10. An incoming call control system of a portable communication terminal as claimed in claim 9, wherein the data format is provided with an operating mode frame having operating mode information designated by the portable communication terminal next to the ID information frame.

11. An incoming call control system of a portable communication terminal as claimed in claim 10, wherein the data format is provided with a parity frame for detecting a code error next to the operating mode frame.

12. An incoming call control system of a portable communication terminal as claimed in one of claims 9-11, wherein the portable communication terminal transmits a full-rate mode signal which has been coded into a half-rate mode signal;

and the incoming call notifying device demodulates the received half-rate mode signal into the full-rate mode signal.

13. An incoming call control system of a portable communication terminal as claimed in one of claims 9-11, wherein the portable communication terminal employs an ASK digital signal modulation system for modulation.

14. An incoming call control system of a portable communication terminal as claimed in one of claims 9-11, wherein the ID signal is transmitted at a transmission rate of 400 bps with a data length of 80 ms.

15. An incoming call control system of a portable communication terminal wherein when an incoming call is received by a portable communication terminal, an ID signal is transmitted from the portable communication terminal via radio to an incoming call notifying device;

and the incoming call notifying device performs an incoming call notifying operation after the portable communication terminal detects the ID signal, wherein

weak radio waves in the frequency range of 250 MHz to 322 MHz are used for the ID signal.

16. An incoming call control system of a portable communication terminal as claimed in claim 15, wherein the incoming call notifying device is provided with a built-in loop antenna for receiving the weak radio wave.

17. An incoming call notifying device of a portable communication terminal wherein when an incoming call is received by the portable communication terminal, an ID signal is transmitted from the portable communication terminal via radio to an incoming call notifying device;

and the incoming call notifying device performs an incoming call notifying operation after the incoming call notifying device detect the ID signal on receipt of the ID signal intermittently, wherein

the incoming call notifying device is provided with

a received data detection unit for detecting a digital data on receipt of a radio wave from the portable communication terminal,

a control unit for comparing the ID data detected by the received data detection unit with the data prestored in a memory so as to control the incoming call notifying device on the basis of results of comparison and identifying the data detected by the received data detection unit stepwise before controlling the incoming call notifying device,

a timer for outputting a transfer signal for switching the received data detection unit from a sleep mode to an operating mode in a predetermined cycle, wherein

when the timer outputs the transfer signal, the control unit switches the received data detection unit from the sleep mode to the operating mode and identifies the data detected by the received data detection unit stepwise and when the data needs not detection, the control unit returns the received data detection unit to the sleep mode from the operating mode.

18. An incoming call control system of a portable communication terminal as claimed in claim 17, wherein when the control unit decides that the received data is doubtful, the control unit immediately returns the received data detection unit to the sleep mode from the operating mode.

19. An incoming call notifying device of a portable communication terminal as claimed in either claim 17 or claim 18, wherein when the control unit fails to identify the bit synchronizing data of the received data, the control unit immediately returns the received data detection unit to the sleep mode from the operating mode.

20. An incoming call notifying device of a portable communication terminal as claimed in one of claims 17-18, wherein when the control unit fails to identify the bit synchronizing data of the received data, the control unit exerts control so that the received data detection unit is immediately returned to the sleep mode from the operating mode.

21. An incoming call notifying device of a portable communication terminal as claimed in one of claims 17-18, wherein when the control unit decides that the ID information of the received data is different from the prestored ID data, the control unit exerts control so that the received data detection unit is immediately returned to the sleep mode from the operating mode.

22. An incoming call notifying device of a portable communication terminal wherein when an incoming call is received by a portable communication terminal, an ID signal is transmitted from the portable communication terminal via radio to the data reception unit of the incoming call notifying device;

and the incoming call notifying device performs an incoming call notifying operation after detection of the ID signal, characterized in that

an antenna for use is such that the open f ace of a loop and the surface of a grounded board are set parallel to each other;

the open area of the loop is set equal to or greater than the area of the grounded board; and

the distance between the loop and the grounded board is set not less than {fraction (1/40)} of the wavelength.