Terminal device for resolving conflicts when multiple functions access a resource

• US 7,526,766 B2
• Filed: 05/21/2004
• Issued: 04/28/2009
• Est. Priority Date: 05/22/2003
• Status: Expired due to Fees

• Current Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Original Assignee: NTT Docomo Incorporated (Nippon Telegraph and Telephone Corporation)
• Inventors: Asai, Mao, Watanabe, Nobuyuki, Tsuda, Masayuki
• Primary Examiner(s): Nguyen; Van H
• Application Number:
  US10/850,867
• Publication Number:
  US 20050021876A1
• Time in Patent Office: 1,803 Days
• Field of Search: 719310-314, 719/213, 719/318, 718100-104, 710/1, 710/39, 709/226, 370/444
• US Class Current: 718/103
• CPC Class Codes: G06F 2209/522 Manager
• CPC Class Codes: G06F 9/50 Allocation of resources, e.g. of the central processing unit [CPU]
• CPC Class Codes: G06F 9/526 Mutual exclusion algorithms

Abstract

In a case that communication functions configuring a host system use origination functions (resources), when JAM (“Java Application Manager”) stored in a mobile phone receives, from KVM (“K Virtual Machine”), request data indicating that a first Java AP (“application”) requests to execute an origination function, JAM executes or cancels an execution request by the first Java AP in accordance with an instruction input by a user. Further, when JAM cancels an execution request by the first Java AP, JAM provides to KVM notification data indicating that an execution request is cancelled.

Claims

1. A terminal device comprising:

a storage unit that stores an indicator representative of a priority of an application;

a detector that detects a request for use of a resource by a first application, the resource being used by a second application;

a determination unit that determines a relative priority of the first and second applications upon detection of a conflict, by comparing indicators of the first and second applications;

a controller that rejects the request of said first application when a priority of the first application is lower than a priority of the second application;

a notifying unit that notifies a user of the terminal device of the rejection of the request of the first application;

a user input that enables the user to input an instruction; and

a display that displays a message to prompt the user to input an instruction, when the determination unit fails to determine that the priority of the first application is higher than the second application,

wherein the controller determines whether to accept the request of the first application according to the instruction input via the user input, and

wherein when the instruction represents acceptance of the request of the first application, at least one of the indicators stored in the storage unit is updated.

2. The terminal device of claim 1, wherein the determination unit fails to determine that the priority of the first application is higher than the second application when the indicator of the priority of the first application is equal to or less than the indicator of the priority of the second application.

3. The terminal device of claim 1, wherein the determination unit fails to determine that the priority of the first application is higher than the second application since at least one of the indicators of the priority of the first or second applications are not stored in the storage unit thereby resulting in the determination unit failing to determine relative priority;

and

wherein when the determination unit fails to determine the relative priority, the controller determines whether to accept the request of the first application based only on the instruction.

4. The terminal device of claim 1, wherein when the instruction represents acceptance of the request of the first application, the indicator for the first application is updated to be greater than the indicator of the second application.

5. The terminal device of claim 1, wherein the resource comprises a hardware resource.

6. The terminal device of claim 1, wherein the resource comprises a network resource.

7. The terminal device of claim 6, wherein the network resource comprises a radio channel for communication with a mobile communication network.

8. The terminal device of claim 6, wherein the network resource comprises a packet transmission line.

9. A method for resolving conflicts in using a resource on a terminal device, the method comprising:

storing an indicator representative of a priority of an application;

detecting a request for use of a resource by a first application, the resource being used by a second application;

determining a relative priority of the first and second application upon detection of a conflict, by comparing indicators of the first and second applications;

rejecting the request of the first application when a priority of the first application is lower than a priority of the second application;

notifying a user of the terminal device of the rejection of the request of the first application;

when it is not determined that the priority of the first application is higher than the second application, displaying a message to prompt the user to input an instruction;

receiving an input of an instruction via a user input; and

determining whether to accept the request of the first application according to the instruction input via the user input,

wherein when the instruction represents acceptance of the request of the first application, at least one of the indicators stored in the storage unit is updated.

10. The method of claim 9, wherein it is not determined that the priority of the first application is higher than the second application when the indicator of the priority of the first application is equal to or less than the indicator of the priority of the second application.

11. The method of claim 9, wherein it is not determined that the priority of the first application is higher than the second application since at least one of the indicators of the priority of the first or second applications is not stored in a storage unit in the terminal device thereby resulting in a failure to determine relative priority;

and

wherein, when there is a resulting failure in determining the relative priority, determining whether to accept the request of the first application is performed solely based on the instruction input.

12. The method of claim 9, wherein when the instruction represents acceptance of the request of the first application, the indicator for the first application is updated to be greater than the indicator of the second application.

13. The method of claim 9, wherein the resource comprises a hardware resource.

14. The method of claim 9, wherein the resource comprises a network resource.

15. The method of claim 14, wherein the network resource comprises a radio channel for communication with a mobile communication network.

16. The method of claim 14, wherein the network resource comprises a packet transmission line.