COMMUNICATION CIRCUIT, DEVICE, COMMUNICATION SYSTEM, COMMUNICATION CIRCUIT CONTROL METHOD, AND PROGRAM

WIPO Patent Application WO/2024/090064

A1

According to the present invention, the switching of connection and no-connection between a terminating resistor of a communication circuit and a transmission path is performed without causing a communication error. This communication path (6A) comprises: a communication unit (10), a terminating resistor (12), a switch (13), a detection unit (15), and a control unit (16). The communication unit (10) is provided to a device (2) connected to a transmission path (3), and performs communication, via the transmission path (3), with another communication unit (10) provided to another device (2) which is connected to the transmission path (3). The terminating resistor (12) is connected to the transmission path (3). The switch (13) switches the connection and non-connection between the terminating resistor (12) and the transmission path (3). The detection unit (15) detects the total resistance value (R1) of all the resistors connected to the transmission path (3) while the terminating resistor (12) and the transmission path (3) are connected. The control unit (16) controls, on the basis of the detection results from the detection unit (15), the connection and non-connection made, by the switch (15), between the terminating resistor (12) and the transmission path (3).

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NAMBA AKIHIKO
NAKANO SHINSUKE

PCT/JP2023/033553

May 02, 2024

September 14, 2023

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PANASONIC IP MAN CO LTD (JP)

H04L25/02; H04L12/28

JPH09326811A	1997-12-16
JP2021520735A	2021-08-19
JPH04315335A	1992-11-06

KAMATA Kenji et al. (JP)

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