Sharp Kabushiki Kaisha Corporation

Kota Tanaka

Hitoshi Naoe

Koji Sakai

Fumihiro Fukae

Atsuhiro Doi

Kohji Sakai

Protocol conversion based on a communication protocol and data modulation based on a communication method are performed, in advance, on desired transmission data by a host device, which is an external device. Then, the converted data will be written to a memory in a transmitting device. According to a transmission command from an input section, a logical device reads out the converted data stored in the memory, and then outputs the read data from a transmitting section.

Transmitting system and transmitting device

A plurality of connection frames are transmitted which differ from each other in at least either modulation scheme or transfer rate. Accordingly, a receiving-end device can properly receive a connection frame even in an environment where the connection frame is likely to be affected by noise.

Data transmission with dynamic modulation scheme and/or transfer rate

A communications device is provided which receives data frames in FIR communications mode even if the device has failed to normally receive a connect frame in SIR communications mode. A communications device according to the invention includes an incoming frame processing section for receiving an SNRM frame and UI frames in different frame formats. The SNRM frame contains a setting for a connection for data communications. The UI frames contain data. The communications device also includes a reception processing section and connect command notification sections. The reception processing section renders a light reception section stand by for reception of the UI frames in FIR communications mode. The connect command notification sections generate a connect command for output to an upper layer. The connect command enables establishing of the same connection when a data frame is received from another communications device as when a connect frame was received from the other communications device.

Growing community of inventors

Kyoto, Japan

Kota Tanaka