Sony Corporation

Hidekazu Kamimura

Haruhiko Yata

Tomoya Yamaura

Takeshi Itagaki

Toru Nagara

Hitoshi Nakamura

Katsunori Honma

Hiroyuki Shigei

Futoshi Takeuchi

Nobuaki Kawai

Kazuyoshi Maezawa

Provided is a transmitting apparatus including an image obtaining unit configured to obtain image data having pixel information including color information and having a first resolution, an image conversion unit configured to delete the color information of at least a portion of pixels of the obtained image data, to rearrange the pixel information of a plurality of pixels, and to convert the image data having the first resolution into image data having a second resolution lower than the first resolution, and an output unit configured to output, to a transmitter, the image data whose resolution has been converted from the first resolution into the second resolution by the image conversion unit, the transmitter having a maximum resolution of image data which the transmitter is allowed to wirelessly transmit to a receiving apparatus, the maximum resolution being the second resolution.

Transmitting apparatus, receiving apparatus, transmitting method, receiving method, and transmitting and receiving system

[Object] To prevent or reduce the degradation in transmission characteristics caused by fast fading (fluorescent lamp interference) to achieve optimized throughput. [Solution] A process for detecting fast fading (fluorescent lamp interference) is performed (ST). Fast fading is detected by, for example, detecting a variable light source whose frequency is twice the frequency of an alternating current power supply. When fast fading is detected, a frame length update process is performed (ST, ST). In the case of 'subject transmission' in which the subject apparatus is the transmitter of a data frame, the setting of the maximum number of aggregations in frame aggregation (A-MPDU, A-MSDU) is changed to 'the recommended maximum number of aggregations'. &#x201c;The recommended maximum number of aggregations&#x201d; is set in advance so that the UDP throughput can be maximized under the conditions where fast fading has occurred. In the case of &#x201c;subject reception&#x201d; in which the subject apparatus is the receiver of a data frame, the subject apparatus sends a request message for limiting the maximum transmission length to the communication counterpart apparatus.

Wireless communication apparatus and wireless communication method

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Kanagawa, Japan

Hidekazu Kamimura