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Radio communication device

A wireless communication device and wireless interface technology, applied in image communication, digital transmission system, electrical components, etc., can solve problems such as inability to transmit efficiently, and achieve the effect of improving convenience

Inactive Publication Date: 2012-10-10
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this method, when the CEC information is not received normally, the receiving side device needs to stand by for a predetermined time, and there is a problem that efficient transmission cannot be performed.

Method used

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Embodiment approach

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Abstract

Upon reception of a CEC message destined to a node device connected via a radio transmission / reception circuit (24) in a cable interface circuit (22), a CEC controller (21A) of a radio node device (20) outputs ACK in response to the received CEC message from the cable interface circuit (22), transmits a radio data packet including a content of the CEC message from the radio transmission / receptioncircuit (24), and waits for reception of a radio ACK packet in response to the transmitted radio data packet in the radio interface transmission / reception circuit (24).

Description

Technical field [0001] The present invention relates to a wireless communication device and a wireless communication system that can effectively transmit CEC information in HDMI between a plurality of wireless communication devices. Background technique [0002] As a conventional technology using CEC (Consumer Electronics Control) information (CEC message) of HDMI (High-Definition Multimedia Interface), a wired transmission technology is used (for example, refer to Patent Document 1). Here, the so-called "HDMI" is a technology standardized by Non-Patent Document 1. [0003] Here, the transmission method when two devices (source device and sink device) equipped with HDMI interfaces are wiredly connected using HDMI cables, and one device sends CEC information to another device. The CEC information sent by the sending device (source device or receiving device) is stored in a frame and transmitted to the receiving device (receiving device or source device). [0004] Picture 9 It is a g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08
CPCH04N21/43637H04N21/4122H04N21/43615H04L1/1867H04L1/1829H04N21/43632H04L2001/0097
Inventor 船引诚龙田明浩大植裕司
Owner PANASONIC CORP