US 12,007,931 B2
Bus system and communication device
Hideyuki Matsumoto, Tokyo (JP); Hiroaki Hayashi, Kanagawa (JP); Takashi Yokokawa, Kanagawa (JP); and Naoki Yoshimochi, Kanagawa (JP)
Assigned to Sony Group Corporation, Tokyo (JP)
Appl. No. 15/558,785
Filed by Sony Group Corporation, Tokyo (JP)
PCT Filed Mar. 25, 2016, PCT No. PCT/JP2016/059681
§ 371(c)(1), (2) Date Sep. 15, 2017,
PCT Pub. No. WO2016/163252, PCT Pub. Date Oct. 13, 2016.
Claims priority of application No. 2015-077328 (JP), filed on Apr. 6, 2015; and application No. 2015-196644 (JP), filed on Oct. 2, 2015.
Prior Publication US 2018/0074990 A1, Mar. 15, 2018
Int. Cl. G06F 13/40 (2006.01); G06F 13/36 (2006.01); H04L 25/02 (2006.01); H04M 1/00 (2006.01)
CPC G06F 13/4086 (2013.01) [G06F 13/36 (2013.01); H04L 25/02 (2013.01); H04M 1/00 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A bus system comprising:
three or more devices that include at least one imaging device, the three or more devices configured to transmit or receive a data signal in a time-division manner; and
a bus coupled to each of the three or more devices,
wherein the three or more devices each include a respective communicator coupled to the bus,
among respective communicators of the three or more devices, a first communicator coupled to a first end of the bus includes:
a receiver,
a first termination resistor connected across respective first and second inputs of the receiver, the first termination resistor being settable to be enabled or disabled,
a termination controller configured to control the first termination resistor to be enabled in a first period during which the data signal is transferred by the bus and the first communicator itself does not transmit and receive the data signal, and control the first termination resistor to be disabled in a period other than the first period,
wherein the termination controller controls the first termination resistor to be enabled regardless of whether the first communicator receives the data signal.