Wireless transmission terminal and method of wireless transmission, encoding device and encoding method therefor, and computer program

Abstract

Provided is a wireless transmission terminal capable of reducing the number of frames that cannot be normally played due to a service disconnection period, while minimizing the buffer capacity required by the wireless transmission terminal. A wireless video transmission terminal (100) which encodes and wirelessly transmits data to be sequentially played is provided with: a video acquiring unit (1) for acquiring the data to be sequentially played; an encoding unit (21) for generating encoded data by encoding for each frame the data acquired by the video acquiring unit (1) using inter-frame predictive coding; a wireless transmitting-receiving unit (3) for wirelessly transmitting the encoded data; a wireless state determination unit (5) for determining the wireless state of the wireless transmitting-receiving unit (3) and for suspending transmission of the encoded data by the wireless transmitting-receiving unit (3) when a deterioration in the wireless state has been determined; and a reference point designation unit (22) for designating a reference point frame for the inter-frame predictive coding in the encoding unit (21) when transmission of the encoded data by the wireless transmitting-receiving unit (3) is suspended by the wireless state determination unit (5).

Description

[0001] In this application, the benefit of Patent Application No. 2010-286447 filed in Japan on December 22, 2010 is claimed, the contents of which are incorporated herein by reference. technical field [0002] The present invention relates to a wireless transmission terminal, a wireless transmission method, a coding device for a wireless transmission terminal, and a wireless transmission method for encoding data replayed in time series by inter-frame predictive coding and transmitting in a wireless manner. Encoding methods, and computer programs for performing these methods. Background technique [0003] Conventionally, a mobile terminal (hereinafter referred to as a “wireless video transmission terminal”) is known that has a function of photographing a subject to generate video data and at the same time transmit the generated video data wirelessly. Such a wireless video transmission terminal is usually a digital video camera with a wireless communication function and capab...

AI Technical Summary

Problems solved by technology

[0020] As a result, if the switching starts and the transmission is suspended, even if the switching is completed and the transmission is restarted later, the frame cannot be reproduced normally at the transmission destination until the next I picture

Therefore, in the first prior art, the capacity of the buffer required by the wireless video transmission terminal cannot be suppressed to sufficiently reduce the frames that cannot be played back normally due to switching.

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