Convenient dialing of names and numbers from a phone without alpha keypad

• US 20020198027A1
• Filed: 06/22/2001
• Published: 12/26/2002
• Est. Priority Date: 06/22/2001
• Status: Active Grant

• Current Assignee: Ericsson, Inc. (Telefonaktiebolaget LM Ericsson)
• Original Assignee: Ericsson, Inc. (Telefonaktiebolaget LM Ericsson)
• Inventors: Rydbeck, Nils R.
• Granted Patent: US 6,947,770 B2
• Time in Patent Office: Days
• US Class Current: 455/564
• CPC Class Codes: H04M 1/2746 Sorting, e.g. according to history or frequency of use
• CPC Class Codes: H04M 1/27463 Predictive input, predictive dialling by comparing the dialled sequence with the content of a telephone directory
• CPC Class Codes: H04M 1/2748 by matching character strings

Abstract

Retrieving a desired telephone number from a database in a mobile communication unit is facilitated by utilizing the frequency with which the user calls each telephone number stored in the database in a manner that allows the mobile communication unit to make a “best guess” of which phone number the user is seeking each time the user pushes a key while inputting a name or character string representing the person that the user wishes to call from the mobile communication unit. If the database does not include any name or character string potentially matching a desired character string entered via a keypad, the mobile communication unit automatically switches to normal phone number entry mode.

Claims

1. A method for operating a mobile communication unit having a database containing data records for one or more telephone numbers with each data record containing an index item stored by a character string, said method comprising:

searching said database for an index item beginning with a desired character string; and

automatically switching said mobile communication unit to a normal telephone number entry mode if said database contains no data records having an index item potentially matching said desired character string.

2. The method of claim 1 further comprising displaying said desired character string after switching to normal telephone number entry mode.

3. The method of claim 1 further comprising retaining said desired character string after switching to normal telephone number entry mode.

4. The method of claim 3 further comprising modifying said desired character string after switching to said normal telephone number entry mode by appending one or more additional characters to said desired character string.

5. The method of claim 1 further comprising recognizing any characters added to said desired character string after switching to normal telephone number entry mode as additional numerical characters and appending said additional numerical characters to said desired character string.

6. The method of claim 1, further comprising:

selecting said desired character string; and

selecting between calling said desired character string and calling a speed dial number associated with said desired character string.

7. The method of claim 6, wherein said selecting between calling said desired character string and calling a speed dial number associated with said desired character string comprises pressing a SEND key immediately after said selecting said desired character string to call said desired character string and pressing said SEND key after pressing a selected other key after said selecting said desired character string to call said speed dial number.

8. A method for placing a call using a mobile communication unit operable alternatively in database search mode of telephone number entry or a normal telephone number entry mode and having a display, a keypad having number keys and a scroll key for scrolling said display, a database for storing data records for telephone numbers with each data record containing a frequency with which said mobile unit calls each of said telephone numbers in said database and an index item stored by a character sequence, said method comprising:

inputting a desired character sequence using said number keys of said keypad;

searching said database in said database search mode for said index items matching said desired character sequence; and

automatically switching said mobile communication unit to normal telephone number entry mode if said database has no index items potentially matching said desired character string.

9. The method of claim 8 further comprising recognizing any characters input after said step of switching to normal phone number entry mode as additional numerical characters and appending said additional numerical characters to said desired character string.

10. The method of claim 8 further comprising:

displaying a portion of said data records including index items matching said desired character sequence on said display;

modifying said desired character sequence by inputting an additional character with said keypad to be appended to said desired character sequence to create a new desired character sequence;

searching said database for said index items matching said new desired character sequence;

displaying a portion of said data records including index items matching said new desired character sequence on said display; and

automatically switching said mobile communication unit to normal telephone number entry mode if said database has no index items potentially matching said new desired character string.

11. The method of claim 10 further comprising recognizing any characters input after said step of switching to normal phone number entry mode as additional numerical characters and appending said additional numerical characters to said desired character string.

12. The method of claim 10 further comprising repeating said steps of claim 10 by modifying said new character string to create one or more additional new desired character strings and automatically switching said mobile communication unit to said normal telephone entry mode if said database has no index items potentially matching said one or more additional new character strings.

13. The method of claim 12 further comprising recognizing any characters input after said step of switching to normal phone number entry mode as additional numerical characters and appending said additional numerical characters to said desired character string.

14. The method of claim 9 wherein said data records further contain a frequency with which each of said telephone numbers in said database is called by said mobile communication unit, and said method further comprises displaying said index items potentially matching said desired character string in a list ordered first by said frequency that said telephone number for that data record is called by said mobile communication unit, and ordered second alphabetically for telephone numbers called with equal frequency by said mobile communication unit, and automatically switching said mobile communication unit to normal telephone number entry mode if said database has no index items potentially matching said desired character string.

15. The method of claim 8, wherein said desired character sequence comprises a number sequence, further comprising:

selecting said number sequence; and

selecting between calling said number sequence and calling a speed dial number associated with said number sequence.

16. The method of claim 15, wherein said selecting between calling said number sequence and calling a speed dial number associated with said number sequence comprises pressing a SEND key immediately after said selecting said number sequence to call said number sequence and pressing said SEND key after pressing a selected other key after said selecting said number sequence to call said speed dial number associated with said number sequence.

17. The method of claim 8, further comprising:

selecting a first displayed data record;

calling said telephone number of said selected first displayed data record;

automatically selecting a second displayed data record responsive to said calling said telephone number of said selected first displayed data record being unsuccessful.

18. The method of claim 17, wherein said second displayed data record is the data record of said displayed data records other than said first displayed data record which has been called most frequently.

20. The mobile communication unit of claim 19 further comprising a screening circuit in said controller determining if said database includes any data records containing a stored character string beginning with said desired character string and causing said controller to switch said mobile communication unit to said normal phone number entry mode if said database does not contain any data record having a stored character string potentially beginning with said desired character string.

21. The mobile communication unit of claim 19 wherein said controller is configured to retain said desired character string after switching said mobile communication unit to said normal entry mode and for sequentially appending additional inputs from said keypad received from said keypad to said desired character string after switching to said normal telephone number entry mode.

22. The mobile communication unit of claim 19 wherein said controller includes a reset circuit for automatically resetting said mobile communication unit to said database search telephone number entry mode after completion of a call in said normal telephone number entry mode.

23. The mobile communication unit of claim 19 further comprising:

a receiver transmitter for connecting a call to said phone number of said data record selected to be called by said mobile unit; and

an incrementor for incrementing said frequency called in said data record for said telephone number called by said mobile communication unit each time said mobile communication unit calls said telephone number in said database.

24. The mobile communication unit of claim 19, further comprising a display displaying data records having stored character strings beginning with said desired character string only when in said database search telephone number entry mode.

25. The mobile communication unit of claim 19, wherein:

said database further stores speed dial numbers each associated with a discrete numeric string;

said keypad is for

inputting said desired character string as a numeric string,

selecting an input numeric string, and

selecting between calling said numeric string and calling said speed dial number associated with said selected numeric string.

26. The mobile communication unit of claim 25, said keypad further comprising a SEND key and a mode key, and

said controller causing said mobile communication unit to

call said numeric string when said SEND key is pressed after selecting said input numeric string, and

call said speed dial number associated with said number sequence when said SEND key is press after said mode key is pressed after selecting said input numeric string.

27. The mobile communication unit of claim 19, wherein:

said keypad is for selecting one of said data records having stored character strings beginning with said desired character string; and

said controller selects another of said data records having stored character strings beginning with said desired character strings responsive an unsuccessful attempt to call said telephone number of said selected one data record.

28. The mobile communication unit of claim 27, wherein said another of said data records is the data record of said data records having stored character strings beginning with said desired character strings, other than said selected one data record, which has been called most frequently by said mobile communication unit.

19. A mobile communication unit comprising:

a database storing data records for one or more telephone numbers with each data record containing a stored character string corresponding to each phone number stored in said database;

a keypad for inputting a desired character string; and

a controller for receiving said desired character string and searching said database in a database search telephone number entry mode for said data records having stored character strings beginning with said desired character string, and automatically switching said mobile communication unit to a normal telephone entry mode if said database does not contain any stored character string potentially beginning with said desired character string.

29. A mobile communication unit comprising:

a database storing data records for one or more telephone numbers with each data record containing a stored character string corresponding to phone numbers stored in said database and a frequency called value representing a frequency with which said mobile communication unit places a call to each said phone number stored in said database;

a keypad for inputting a desired character string;

a controller for receiving said desired character string and searching said database in a database search telephone number entry mode for said data records having stored character strings beginning with said desired character string, and providing a listing of data records identified by said searching of said database together with frequency called for each of said data records;

a screening circuit in said controller automatically switching said mobile communication unit to a normal telephone number entry mode if said database does not contain any data records beginning with said desired character string;

a sorter for sorting said data records provided by said controller;

a display device for displaying a grouping of said data records in order as sorted by said sorter;

a selector for selecting a data record from said displayed grouping to be called by said mobile communication unit;

an incrementor for incrementing said frequency called in said data record for said telephone number called by said mobile communication unit each time said mobile communication unit calls said telephone number in said database, and

a reset circuit for automatically resetting said mobile communication unit to said database search telephone number entry mode after completion of a call in said normal telephone number entry mode.