Push-to-talk over cellular system, portable terminal, server apparatus, pointer display method, and program thereof

• US 7,966,030 B2
• Filed: 01/12/2006
• Issued: 06/21/2011
• Est. Priority Date: 01/12/2005
• Status: Active Grant

• Current Assignee: Lenovo Innovations Ltd Hong Kong (Lenovo Group Ltd.)
• Original Assignee: NEC Corporation
• Inventors: Yamaguchi, Yuuichi
• Primary Examiner(s): Pan; Yuwen
• Assistant Examiner(s): Nguyen; Hai V
• Application Number:
  US11/795,143
• Publication Number:
  US 20080139251A1
• Time in Patent Office: 1,986 Days
• Field of Search: 455/518
• US Class Current: 455/518
• CPC Class Codes: H04W 4/10 Push-to-Talk [PTT] or Push-On-Call services
• CPC Class Codes: H04W 76/45 for Push-to-Talk [PTT] or Push-to-Talk over cellular [PoC] services

Abstract

The present invention provides a PoC portable terminal capable of performing edit and information addition on a display screen on which screen information relating to a group telephone conversation is displayed. When a push button of a key operation part 15 is pushed down, a portable terminal 1 becomes a master side. The portable terminal 1 displays pointer information of a marker, which is outputted by a pointing device part 18, on a display part 16. The portable terminal 1 transmits the pointer information from a radio part 14 to a PoC server. The PoC server sends the pointer information from the portable terminal 1 to other users'"'"' portable terminals in a group. If the pointer is moved, then the portable terminal 1 as a master side repeats the aforementioned processes.

Claims

1. A PoC (Push-to-talk over Cellular) system comprising:

a PoC portable terminal capable of a group telephone conversation substantially in the same manner as a transceiver; and

a PoC server for managing a right of speaking from a user of said PoC portable terminal in a telephone conversation group,

wherein said PoC portable terminal comprises;

a radio part for receiving data of a common image to be displayed on PoC terminals in said telephone conversation group from said PoC server;

a display part for displaying said common image data and a marker specifying a portion of said common image;

an input part for receiving an input for said display of said marker; and

a control part for controlling said display of said marker on said display part according to said input that is made through said input part while said user'"'"'s PoC portable terminal has said right of speaking,

wherein said radio part transmits data Dm for said marker to said PoC server, and

wherein said PoC server transmits said data Dm of said marker to other users'"'"' PoC portable terminals if said marker is moved in the screen of said user'"'"'s PoC terminal while said user'"'"'s PoC terminal having said right of speaking in said telephone conversation group.

2. Said PoC system claimed in claim 1, wherein said input part comprises a pointing device or a touch panel.

3. Said PoC system claimed in claim 1, wherein said input part comprises:

means for receiving a voice input;

means for recognizing the inputted voice; and

means for comparing a text comprised in a common screen with a text represented by said recognized voice, and receives an input for display of said marker based on the comparison result.

4. Said PoC system claimed in claim 1, wherein said marker is played as one of a pointer for specifying a position on said common screen, a line drawn along a partial or whole circumference of a component in said common screen, and a change of a display form of a component in said common screen.

5. Said PoC system claimed in claim 1, wherein said marker is capable of movement for a substantial portion of a screen of said display part in accordance with an input operation by said input part on a master side of said PoC portable terminals, and

wherein said movement of said marker is included in said data Dm of said marker transmitted by said radio part.

6. Said PoC system claimed in claim 5, wherein said control part controlling said displaying of said movement of said marker is independent of said right of speaking between said PoC portable terminals.

7. The PoC system claimed in claim 1, wherein said radio part transmits data Dm of said marker to said PoC server including while said PoC portable terminal has said right of speaking.

13. Said PoC portable terminal claimed in claim 5, wherein said input part comprises a pointing device or a touch panel.

8. A pointer display method used in a PoC (Push-to-talk over Cellular) portable terminal in a PoC system comprising a PoC portable terminal capable of a group telephone conversation substantially in the same manner as a transceiver and a PoC server for managing a right of speaking in said PoC portable terminal, said pointer display method comprising:

receiving, by a terminal A as a PoC portable terminal, data of a common image to be displayed on PoC terminals in a telephone conversation group from said PoC server;

displaying, by said terminal A, displays said common image data;

acquiring said right of speaking by said terminal A;

receiving, by said terminal A, an input for display of a marker specifying a portion of said common image;

displaying, by said terminal A, said marker according to input that is received by said terminal A while said terminal A has said right of speaking and transmitting data Dm of said marker to said PoC server;

transmitting, by said PoC server, said data Dm received from said terminal A to a terminal B as a PoC portable terminal other than said terminal A in said telephone conversation group;

displaying, by said terminal B, said marker according to said data Dm; and

releasing, by said terminal A, said right of speaking.

9. Said pointer display method claimed in claim 8, wherein said data Dm comprises one of position data on said common screen and data specifying a component of said common image.

10. Said pointer display method claimed in claim 8, wherein said receiving said input for display of said marker comprises:

receiving, by said terminal A, a voice input;

recognizing, by said terminal A the inputted voice;

comparing, by said terminal A, a text comprised in a common screen with a text represented by said recognized voice; and

receiving, by said terminal A, an input for display of said marker based on said comparison result.

11. Said pointer display method claimed in claim 8, wherein said marker is displayed as one of a pointer for specifying a position on said common screen, a line drawn along a partial or whole circumference of a component in said common screen, and a change of a display form of a component in said common screen.

12. A PoC (Push-to-talk over Cellular) portable terminal capable of a group telephone conversation substantially in the same manner as a transceiver, said PoC portable terminal comprising:

a radio part for receiving data of a common image to be displayed on terminals in a telephone conversation group from a PoC server for managing a right of speaking in a plurality of PoC portable terminals in a telephone conversation group;

a display part for displaying said common image data and a marker specifying a portion of said common image;

an input part for receiving an input for display of said marker; and

a control part for controlling display of said marker on said display part according to input that is made through said input part while said PoC portable terminal has said right of speaking, said radio part transmitting data Dm for said marker to said PoC server and said PoC server transmitting said data Dm of said marker to other users'"'"' PoC portable terminals if said marker is moved in the screen of said user'"'"'s PoC portable terminal while said user'"'"'s PoC portable terminal having said right of speaking in said telephone conversation group.

14. Said PoC portable terminal claimed in claim 12, wherein said input part comprises:

means for receiving a voice input;

means for recognizing the inputted voice; and

means for comparing a text comprised in a common screen with a text represented by said recognized voice, and receives an input for display of said marker based on said comparison result.

15. The PoC portable terminal claimed in claim 12, wherein said marker is displayed as one of a pointer for specifying a position on said common screen, a line drawn along a partial or whole circumference of a component in said common screen, and a change of a display form of a component in said common screen.

16. A computer readable non-transitory tangible medium storing a computer program for controlling operation of a PoC (Push-to-talk over Cellular) portable terminal capable of a group telephone conversation substantially in the same manner as a transceiver by executing a procedure with a control computer of said PoC portable terminal, said procedure comprising:

a process of receiving data of a common image to be displayed on all PoC portable terminals in a telephone conversation group from a PoC server;

a process of displaying said common image data in the screen of a user'"'"'s PoC terminal;

a process of getting a right of speaking from said user'"'"'s PoC terminal;

a marker input process of receiving an input for display of a marker specifying a portion of said common image; and

a process of displaying said marker according to said input for display of said marker that is made while having said right of speaking and transmitting data Dm of said marker to said PoC server and said PoC server transmitting said data Dm of said marker to other users'"'"' PoC portable terminals if said marker is moved in the screen of said user'"'"'s PoC portable terminal while said user'"'"'s PoC portable terminal having said right of speaking in said telephone conversation group.

17. A PoC (Push-to-talk over Cellular) server apparatus for managing a right of speaking in a PoC portable terminal capable of a group telephone conversation substantially in the same manner as a transceiver, the PoC server apparatus comprising:

means for transmitting data of a common image to be displayed on PoC terminals a telephone conversation group to all PoC portable terminals in said telephone conversation group;

means for receiving data Dm of a marker specifying a portion of said common image from a user'"'"'s PoC portable terminal having said right of speaking in said telephone conversation group; and

means for transmitting said Dm data for the of said marker to another user'"'"'s PoC portable terminal in said telephone conversation group;

wherein said means for transmitting said data Dm for the of said marker to said another user'"'"'s PoC portable terminal comprises means for transmitting said data Dm of said marker to other users'"'"' PoC portable terminals if said marker is moved in the screen of said user'"'"'s PoC portable terminal while said user'"'"'s PoC portable terminal having said right of speaking in said telephone conversation group.

18. The PoC server apparatus claimed in claim 17, wherein said data Dm of said marker comprises data representing a position on said common image or data specifying a component of said common image.

19. Said PoC server apparatus claimed in claim 17, wherein said data Dm of said marker represents a text specified in a text comprised in said common image by voice recognition.