Paging system for automatically dialing and method therefor

• US 5,280,516 A
• Filed: 08/14/1991
• Issued: 01/18/1994
• Est. Priority Date: 01/19/1991
• Status: Expired due to Term

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Jang, Jong-Jin
• Primary Examiner(s): Ng, Jin F.
• Assistant Examiner(s): Bost, Dwayne D.
• Application Number:
  US07/744,932
• Time in Patent Office: 888 Days
• Field of Search: 379/56, 379/57, 379/354, 379/355, 379/58, 455/344
• US Class Current: 340/7.1
• CPC Class Codes: G08B 5/228 combined with other devices having a different main function, e.g. watches
• CPC Class Codes: H04M 1/27485 Appending a prefix to or inserting a pause into a dialling sequence
• CPC Class Codes: H04M 1/275 implemented by means of portable electronic directories
• CPC Class Codes: H04W 88/022 Selective call receivers

Abstract

A paging receiver for automatically dialing a stored telephone number can consider an area code. A received telephone number stored into a memory corresponding to a number of depressions of a read key is displayed when the read key is depressed, and an area code stored into the memory corresponding to the number of depressions of an area key is displayed when the area key is depressed. Then, when the area code and the telephone number are displayed, an unnecessary extension number, etc., is erased by using an editing key. Thereafter, the area code and the telephone number are converted into a DTMF signal when a dial key is depressed and the DTMF signal is applied to an electronic exchange through a telephone, thereby performing automatic dialing.

Claims

1. A method for automatically dialing in a paging system comprising a memory for storing a self-address into a first area of said memory, a received telephone number into a second area of said memory and a plurality of area codes into a third area of said memory, wherein said received telephone number is stored into said second area if said received telephone number is coincident with said self-address and thereafter, the stored telephone number is selected, edited and transmitted by a user depressing first to fourth keys, wherein the telephone number is transmitted as a dual tone multi-frequency signal generated through a telephone transmitter, said method comprising the steps of:

selectively displaying the stored telephone number corresponding to a number of depressions of said first key on display means when said first key is depressed;

if said displayed telephone number comprises an unwanted digit, moving a cursor displayed by said display means one digit by depressing a second key for a first period being less than a predetermined time and changing said displayed telephone number by deleting a displayed digit flagged by said cursor by depressing said second key for a second period being one of equal to and greater than said predetermined time;

if the area code is not desired for transmitting, converting the displayed telephone number into a dual tone multi-frequency signal when said third key is depressed, and transmitting said dual tone multi-frequency signal to the telephone transmitter;

if the area code is desired for transmitting, selectively displaying the area code, corresponding to a number of depressions of said fourth key, on said display means when said fourth key is depressed;

if said displayed telephone number and area code comprises said unwanted digit, moving the cursor said one digit by depressing the second key for the first period and changing the displayed telephone number and area code by deleting said digit flagged by said cursor by depressing said second key for the second period; and

converting the displayed telephone number and area code into the dual tone multi-frequency signal when said third key is depressed, and transmitting said dual tone multi-frequency signal to the telephone transmitter.

2. The method for automatically dialing in a paging system as claimed in claim 1, wherein said memory is an electrically erasable and programmable read only memory capable of protecting stored data when power of said paging system is turned off.

3. A method for automatically dialing from a paging receiver having a dial key, said method comprising the steps of:

displaying first data of a received telephone number stored in a first area of a memory by depressing a read key;

displaying second data, along with said displayed first data, corresponding to an area code stored in a second area of the memory by depressing an area key;

changing said displayed first and second data by moving a displayed cursor one digit by depressing an edit key for a first duration and deleting a displayed digit marked by the cursor by depressing the edit key for a second duration; and

combining and converting said displayed first and second data into a dual tone multi-frequency signal when said dial key is depressed and transmitting said dual tone multi-frequency signal to a telephone transmitter.

4. The method as claimed in claim 3, wherein said memory is an electrically erasable and programmable read only memory capable of protecting stored data when power of said paging receiver is turned off.

5. A paging receiver for automatically dialing a received telephone number of a caller by analyzing a received radio frequency signal, comprising:

receiver means for demodulating the received radio frequency signal and shaping demodulated waveforms to convert the shaped signal into a digital signal;

control circuit means connected to said receiver means, comprising first memory means for storing said received telephone number and dual tone multi-frequency generator means for converting a telephone number to be transmitted into a dual tone multi-frequency signal, for controlling automatic dialing;

a second memory means connected to said control circuit means, for storing first and second specific self-addresses into a first area of said second memory means, storing said received telephone number into a second area of said second memory means and storing at least one area code into a third area of said second memory means;

read key means connected to said control circuit means, for supplying a read key instruction to said control circuit means, for successively selecting one of a plurality of said received telephone numbers stored in said second area;

area key means connected to said control circuit means, for supplying an area key instruction to said control circuit means for successively selecting one of a plurality of area codes stored in said third area;

display means connected to said control circuit means for displaying said selected one of the plurality of received telephone numbers and said selected one of the plurality of area codes according to a control signal of said control circuit means;

dial key means connected to said control circuit means, for supplying a dial key instruction to said control circuit means for combining and converting the selected one of the plurality of received telephone numbers and selected one of the plurality of area codes into a dual tone multi-frequency signal by driving said dual tone multi-frequency generator means;

editing key means connected to said control circuit means, for supplying a first editing key instruction to said control circuit means for moving a cursor displayed by said display means in response to activating the editing key means for a first duration of time, and for supplying a second editing key instruction to said control circuit means for deleting a digit, corresponding to the position of said cursor, of the displayed telephone number and area code in response to activating the editing key means for a second duration of time; and

speaker means connected to said control circuit means, for converting said dual tone multi-frequency signal into a dual tone multi-frequency tone and supplying said dual tone multi-frequency tone to a telephone transmitter.

6. A method of automatically dialing from a paging receiver, comprising the steps of:

reading a received telephone number comprising a local telephone number and an area code from a memory and displaying said received telephone number on a display;

editing the received telephone number by moving a displayed cursor one digit by depressing an edit key for a first time period being less than a predetermined time period and deleting a digit flagged by the cursor by depressing the edit key for a second time period being one of equal to or greater than said predetermined time period; and

automatically dialing the edited telephone number in response to a dial signal.

7. The method of claim 6, wherein the step of reading the received telephone number comprises selecting the received telephone number from a plurality of received telephone numbers stored in the memory by user activation of a read key.

8. The method of claim 6, wherein the step of editing the received telephone number comprises deleting a telephone extension number from the received telephone number.

9. The method of claim 6, wherein the step of automatically dialing the edited telephone number comprises generating a dual tone multi-frequency signal corresponding to the edited telephone number and applying the dual tone multi-frequency signal to a telephone transmitter.

10. The method of claim 6, wherein said memory is an electrically erasable and programmable read only memory protecting stored data when power to the paging receiver is turned off.

11. A method of automatically dialing in a paging receiver, comprising the steps of:

reading and displaying a received telephone number and a corresponding area code from a memory;

editing the displayed telephone number and corresponding area code by moving a cursor on a display one digit by depressing an edit key for a first duration and deleting a digit marked by the cursor by depressing the edit key for a second duration; and

dialing the edited telephone number and area code.

12. The method of claim 11, wherein said memory is an electrically erasable and programmable rear only memory protecting stored data when power to the paging receiver is turned off.

13. The method of claim 11, wherein the step of reading and displaying the received telephone number comprises selecting the received telephone number from a plurality of received telephone numbers stored in the memory by user activation of a read key.

14. The method of claim 11, wherein the step of editing the displayed telephone number comprises deleting a telephone extension number from the received telephone number.

15. The method of claim 11, wherein the step of dialing the edited telephone number comprises generating a dual tone multi-frequency signal corresponding to the edited telephone number and applying the dual tone multi-frequency signal to a telephone transmitter.

16. A paging receiver for receiving a radio frequency signal and automatically dialing a received telephone number transmitted in said received radio frequency signal, said paging receiver comprising:

receiver means for demodulating the received radio frequency signal, shaping a waveform from the received radio frequency signal, and converting the shaped signal into a digital signal;

display means for displaying the received telephone number;

editing means for editing the received telephone number displayed on said display means by moving a displayed cursor one digit by depressing an edit key for a first period being less than a predetermined time and deleting a digit flagged by the cursor by depressing the edit key for a second period being one of equal to and greater than said predetermined time;

control means for controlling automatic dialing of the edited telephone number, said control means comprising a random access memory to first store the received telephone number and a dual tone multi-frequency generator for producing a dual tone multi-frequency signal corresponding to the edited telephone number; and

dial key means for supplying a dial signal via user activation to the control circuit, said control circuit responding by driving the dual tone multi-frequency generator to produce the dual tone multi-frequency signal to be generated through a telephone transmitter.

17. The paging receiver of claim 16, further comprising an electrically erasable and programmable read only memory to also store the received telephone number, said electrically erasable and programmable read only memory protecting said second stored data when power to the paging receiver is turned off.

18. The paging receiver of claim 17, further comprising:

read key means for providing a read key signal to the control circuit to select said received telephone number from a plurality of received telephone numbers stored in said electrically erasable and programmable read only memory.

19. The paging receiver of claim 17, further comprising:

area key means for providing an area key signal to the control circuit to select an area code from a plurality of area codes stored in the electrically erasable and programmable read only memory.

20. A paging receiver for automatically dialing a received telephone number of a received radio frequency signal, said paging receiver comprising:

receiver means for demodulating the received radio frequency signal, shaping a waveform from the received radio frequency signal, and converting the shape signal into a digital signal;

control means for controlling automatic dialing of the received telephone number, said control means comprising a random access memory to first store the received telephone number and a dual tone multi-frequency generator producing a dual tone multi-frequency signal corresponding to the received telephone number;

display means for displaying the received telephone number;

editing key means for providing an editing signal to the control circuit, said control circuit responding by editing the received telephone number by moving a cursor displayed by said display means one digit in response to depressing an edit key for a first duration of time and deleting a digit marked by the cursor in response to depressing the edit key for a second duration of time; and

dial key means for supplying a dial signal via user activation to the control circuit, said control circuit responding by driving the dual tone multi-frequency generator to produce the dual tone multi-frequency signal corresponding to the edited telephone number to be generated through a telephone transmitter.

21. The paging receiver of claim 20, further comprising an electrically erasable and programmable read only memory to also store the received telephone number, said electrically erasable and programmable read only memory protecting said second stored data when power to the paging receiver is turned off.

22. The paging receiver of claim 21, further comprising read key means for providing a read key signal to the control circuit to select said received telephone number from a plurality of received telephone numbers stored in said electrically erasable and programmable read only memory.

23. The paging receiver of claim 21, further comprising area key means for providing an area key signal to the control circuit to select an area code from a plurality of area codes stored in the electrically erasable and programmable read only memory.