Sharp Kabushiki Kaisha Corporation

Ken Nakashima

Toru Ueda

Srinivas Kandala

Yoshihiro Ohtani

Yuhsuke Yamada

Minoru Takemoto

Norihiko Aonuma

Kentaroh Hama

Yoshio Tokuhashi

Hitoshi Nishikawa

Wataru Gohda

Srinivas Sharp Lab Of Americainc Kandala

A server apparatus, a terminal apparatus and an application control system are provided. An application managing unit () determines an application to be transmitted to a terminal () on the basis of execution capability information and terminal state information received from the terminal (). An application transmitting unit () transmits the determined application and a priority record of each application to the terminal () through a server transmitting unit (). An installing unit () installs the received application. An application executing unit () controls execution of the application on the basis of execution priority represented by the received priority record and controls an output of image information generated by the application on the basis of display priority represented by the received priority record.

Server apparatus, terminal apparatus, and application control system

Provided is a communication apparatus by which a user can simply set a transmission quality in a network and QoS control effectively functions. QoS type receiving sections () are arranged in communication apparatuses () on a network, and a user is permitted to specify a QoS type to be requested to the communication apparatuses (), by operating the QoS type receiving sections (). When the communication apparatuses () perform communication, the network is controlled to ensure the QoS corresponding to the QoS type received by the QoS type receiving sections ().

Communication apparatus and device, communication apparatus control method

When a transmission station having a voluntary transmission right transmits FINALL FRAME as a TXOP ending frame to HC, the HC transmits an acknowledgement frame ACK after SIFS following the reception of FINAL FRAME. Here, when the transmitting station has detected that no frame transmission is performed over the communication network from any other ESTAs in PIFS after the transmission of FINAL FRAME, FINAL FRAME is retransmitted in DIFS after the transmission of FINAL FRAME. By performing such a communication management, it is possible to accurately manage a voluntary transmission right even when the communication medium has a low reliability in a network in which one network pathway is time-shared by a plurality of communication apparatuses.

Communication management method, communication terminal, communication management program, recording medium containing the communication management program, and communication system

A receiver capable of switching between a NormalAck scheme that includes an acknowledgement for a single frame in one frame and a BlockAck scheme that includes an acknowledgement for a plurality of frames in one frame. The receiver regards the use of the BlockAck scheme to have been terminated and releases resource being used for the BlockAck scheme and switches to the NormalAck scheme if a data frame requesting the BlockAck scheme is not received within a predetermined period regardless of whether the receiving station has or has not received a data frame requesting the NormalAck scheme.

Communication method enabling use of both a normal acknowledgement scheme and a block acknowledgement scheme

Control commands are sent from communication stations (A, B) to devices (D to F), such as a VTR, connected to a communication station (C) via radio networks (NW) provided between the communication stations (A, B) and the communication station (C), thereby controlling the devices (D to F). As a result, video signals outputted from the devices (D to F) via analog wirings (W) are sent from the communication station (C) to the communication stations (A, B) so that videos based on the video signals are displayed in display devices (A, B) via the communication stations (A, B). In the communication station (C), identifiers for specifying controllers (A, B) which have sent the control commands to the communication stations (A, B) and identifiers for specifying the devices (D to F) controlled are made to respectively correspond to each other, and are stored so that a controller which can be allowed to control is specified. When the control command is sent from the controller (A), the communication station (C) adds a control right for the device (D) for example to the controller upon confirming that the controller (A) can be allowed to control the device (D).

Growing community of inventors

Yamatokoriyama, Japan

Ken Nakashima