RECORDING MEDIUM HAVING STORED IMAGE DISPLAY CONTROL PROGRAM, INFORMATION PROCESSING SYSTEM, AND IMAGE DISPLAY CONTROL METHOD

• US 20150156282A1
• Filed: 11/20/2014
• Published: 06/04/2015
• Est. Priority Date: 12/02/2013
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: KATSUMATA, AKIRA
• Granted Patent: US 10,062,136 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06T 1/20 Processor architectures; Processor configuration, e.g. pipelining

Abstract

The image display control program described below is stored on a recording medium. The program causes a client computer to execute a process including, detecting a stopping signal indicating that operations performed on an image have been stopped, performing control so as not to display images based on image data packets that are received after the detection, opening a second communication port that is different from a first communication port that communicates the image data packets, when the stopping signal is detected, transmitting, to a server via the first communication port, the stopping signal and port identification information of the second communication port, receiving, via the second communication port, a current still image corresponding to the stopping of the operations that the server transmits in response to the stopping signal, and displaying the current still image after an image that has been displayed immediately before the stopping of the operation.

Claims

1. A computer-readable, non-transitory medium stored therein an image display control program for causing a client computer to execute a process, the client computer transmitting, to a server via a network, a signal of an operation performed on an image, sequentially receiving, via the network, image data packets that the server generates on the basis of the signal of the operation, in response to acknowledgments, and displaying images, the process comprising:

detecting a stopping signal indicating that a series of operations performed on the image have been stopped;

performing control so as not to display the images based on the image data packets that are received after the detection of the stopping signal;

opening a second communication port that is different from a first communication port that communicates the image data packets, between the server and the client computer, when the stopping signal is detected;

transmitting, to the server via the first communication port, the stopping signal and port identification information of the second communication port;

receiving, via the second communication port, a current still image corresponding to the stopping of the operations that the server transmits in response to the stopping signal; and

displaying the current still image after the image that has been displayed immediately before the stopping of the operations.

2. The computer-readable, non-transitory medium stored therein the image display control program according to claim 1, wherein

the client computer closes the second communication port after the displaying of the current still image.

3. A computer-readable, non-transitory medium stored therein an image display control program for causing a server computer to execute a process, the server computer receiving a signal of an operation performed on an image transmitted from a client via a network, generating image data packets on the basis of the signal of the operation, and sequentially transmitting the image data packets to the client via the network in response to acknowledgments from the client, the process comprising:

receiving, from the client, a stopping signal based on detection of a stopping signal indicating that a series of operations performed on the image of the client have been stopped, and port identification information of a second communication port that the client opens between the client and the server computer and that is different from a first communication port that communicates the image data packets, and

transmitting, via the second communication port, a current still image at the time of the receiving of the stopping signal.

4. An information processing system comprising:

a client that transmits, to a server via a network, a signal of an operation performed on an image, sequentially receives, via the network, image data packets that the server generates on the basis of the signal of the operation, in response to acknowledgments, and displays images, the client including

a first processor configured to execute a first process, the first process comprising;

detecting a stopping signal indicating that a series of operations performed on the image have been stopped,

performing control so as not to display the images based on the image data packets that are received after the detection of the stopping signal,

opening, between the server and the client, a second communication port that is different from a first communication port that communicates the image data packets, when the stopping signal is detected,

transmitting, to the server via the first communication port, the stopping signal and port identification information of the second communication port,

receiving, via the second communication port, a current still image corresponding to the stopping of the operations that the server transmits in response to the stopping signal, and

displaying the received current still image after the image that has been displayed immediately before the detection of the stopping signal; and

a server that receives the signal of the operation transmitted from the client via the network, generates image data packets on the basis of the signal of the operation, and sequentially transmits the image data packets to the client via the network in response to acknowledgments from the client, the server including

a second processor configured to execute a second process, the second process comprising;

receiving, from the client, the stopping signal and the port identification information from the client, and

transmitting, via the second communication port, the current still image at the time of the receiving of the stopping signal.

5. An image display control method that is performed by a client computer that transmits, to a server via a network, a signal of an operation performed on an image, sequentially receives, via the network, image data packets that the server generates on the basis of the signal of the operation, in response to acknowledgments, and displays images, the image display control method comprising:

detecting a stopping signal indicating that a series of operations performed on the image have been stopped;

performing control so as not to display the images based on the image data packets that are received after the detection of the stopping signal;

opening, between the server and the client computer, a second communication port that is different from a first communication port that communicates the image data packets, when the stopping signal is detected;

transmitting, to the server via the first communication port, the stopping signal and port identification information of the second communication port;

receiving, via the second communication port, a current still image corresponding to the stopping of the operations that the server transmits in response to the stopping signal; and

displaying the current still image after the image that has been displayed immediately before the stopping of the operations.

6. An image display control method that is performed by a server computer that receives a signal of an operation performed on an image transmitted from a client via a network, generates image data packets on the basis of the signal of the operation, and sequentially transmits the image data packets to the client via the network in response to acknowledgments from the client, the image display control method comprising:

receiving, from the client, a stopping signal based on detection of a stopping signal indicating that a series of operations performed on the image of the client have been stopped, and port identification information of a second communication port that the client opens between the client and the server computer and that is different from a first communication port that communicates the image data packets, and

transmitting, via the second communication port, a current still image at the time of the receiving of the stopping signal.