Abstract: An encoder system includes a signal processing circuit including: (1) a first position data detection circuit that detects first position data representing positional displacement in rotation of an input shaft through first predetermined signal processing based on a first detection signal input from a first absolute position encoder; (2) a second position data detection circuit that detects second position data representing positional displacement in rotation of an output shaft through second predetermined signal processing based on a second detection signal input from a second absolute position encoder; (3) a position data combination circuit that combines the first and second position data to generate combined position data representing the number of rotations of the input shaft and the positional displacement within one rotation of the input shaft; and (4) a position data comparing and collating circuit that compares and collates the first and second position data.

Abstract: A joint of a robot includes a driving motor, a speed reducer that reduces rotation of an output shaft of the motor, and an arm connected to the speed reducer. The joint includes an input encoder that detects a rotational position of the motor and an output encoder that detects a rotational position of the arm. A controller controls the motor based on data indicating the rotational positions of the motor and the arm detected by the input encoder and the output encoder, respectively. The input encoder is arranged with a register that latches and retains an input EC value. The output encoder includes a register that latches and retains an output EC value, and an edge pulse output section that outputs an edge pulse to both registers every time the output EC value changes. In response to the edge pulse, both registers concurrently output EC values to the controller.

Abstract: An encoder system includes a signal processing circuit including: (1) a first position data detection circuit that detects first position data representing positional displacement in rotation of an input shaft through first predetermined signal processing based on a first detection signal input from a first absolute position encoder; (2) a second position data detection circuit that detects second position data representing positional displacement in rotation of an output shaft through second predetermined signal processing based on a second detection signal input from a second absolute position encoder; (3) a position data combination circuit that combines the first and second position data to generate combined position data representing the number of rotations of the input shaft and the positional displacement within one rotation of the input shaft; and (4) a position data comparing and collating circuit that compares and collates the first and second position data.

Abstract: An encoder system includes: a first single-rotation absolute encoder that outputs a first signal corresponding to an angular position of a first rotatable shaft; a power transmission device that transmits the power of the first shaft to a second rotatable shaft with a predetermined transmission ratio; a second single-rotation absolute encoder that outputs a second signal corresponding to an angular position of the second shaft; and a signal processing section that generates data related to the rotation count of the first shaft based on at least the first signal and the second signal.

Abstract: An encoder system includes: a first single-rotation absolute encoder that outputs a first signal corresponding to an angular position of a first rotatable shaft; a power transmission device that transmits the power of the first shaft to a second rotatable shaft with a predetermined transmission ratio; a second single-rotation absolute encoder that outputs a second signal corresponding to an angular position of the second shaft; and a signal processing section that generates data related to the rotation count of the first shaft based on at least the first signal and the second signal.

Abstract: A joint of a robot includes a driving motor, a speed reducer that reduces rotation of an output shaft of the motor, and an arm connected to the speed reducer. The joint includes an input encoder that detects a rotational position of the motor and an output encoder that detects a rotational position of the arm. A controller controls the motor based on data indicating the rotational positions of the motor and the arm detected by the input encoder and the output encoder, respectively. The input encoder is arranged with a register that latches and retains an input EC value. The output encoder includes a register that latches and retains an output EC value, and an edge pulse output section that outputs an edge pulse to both registers every time the output EC value changes. In response to the edge pulse, both registers concurrently output EC values to the controller.

Abstract: An encoder system includes: a first single-rotation absolute encoder that outputs a first signal corresponding to an angular position of a first rotatable shaft; a power transmission device that transmits the power of the first shaft to a second rotatable shaft with a predetermined transmission ratio; a second single-rotation absolute encoder that outputs a second signal corresponding to an angular position of the second shaft; and a signal processing section that generates data related to the rotation count of the first shaft based on at least the first signal and the second signal.

Abstract: In an encoder constituted from a detection part (a light-emitting part, rotating disk, and light-receiving part), which detects a signal corresponding to the state of a specimen, and calculates and stores the position information of the specimen from a signal outputted from this detection part, and a signal processing part for transmitting the stored position information to a host machine by way of serial communications, the signal processing part being constituted having: a two-way communication mode M1 for receiving command data from the host machine, and, when this command data is a two-way communication request command (commands A through C), transmitting the requested position information and the like to the host machine; a one-way communication mode M2 for transmitting the position information to the host machine by executing one-way transmission processing S105 when the command data is a one-way communication request command (command P); and a quasi one-way communication mode M3 for transmitting the po

Abstract: In an encoder constituted from a detection part (a light-emitting part, rotating disk, and light-receiving part), which detects a signal corresponding to the state of a specimen, and calculates and stores the position information of the specimen from a signal outputted from this detection part, and a signal processing part for transmitting the stored position information to a host machine by way of serial communications, the signal processing part being constituted having: a two-way communication mode M1 for receiving command data from the host machine, and, when this command data is a two-way communication request command (commands A through C), transmitting the requested position information and the like to the host machine; a one-way communication mode M2 for transmitting the position information to the host machine by executing one-way transmission processing S105 when the command data is a one-way communication request command (command P); and a quasi one-way communication mode M3 for transmitting the po