Canon Kabushiki Kaisha

Kabushiki Kaisha Toshiba

Kenji Shino

Aoji Isono

Kazuhiko Murayama

Tadashi Aoki

Yasukazu Noine

Yasuhiko Sano

Kazunori Katakura

Muneki Ando

Tsutomu Sakamoto

A communication apparatus includes a transmission apparatus configured to transmit operation data for an apparatus, a reception apparatus configured to receive the operation data, a wireless communication unit via which the transmission apparatus and the reception apparatus wirelessly communicate with each other, and a cable configured to connect the transmission apparatus and the reception apparatus, wherein the transmission apparatus transmits a synchronization signal to the reception apparatus via the cable, the synchronization signal indicating a timing to execute the operation data, and wherein the transmission apparatus transmits the operation data corresponding to an operation of the apparatus in a predetermined period to the reception apparatus using the wireless communication unit.

Communication apparatus, communication method, robot apparatus, production apparatus, method of manufacturing article, transmission apparatus, recording medium

A robot arm includes a joint and links connected via the joint, a first encoder configured to detect information related to a position of the joint, a second encoder configured to detect information related to the position of the joint independently from the first encoder, and a controller configured to control an operation of the joint. The second encoder includes a scale in which a pattern is formed and a detector configured to detect position information of the joint by reading the pattern of the scale. The controller is configured to, in a case where a reading error occurs in the detector of the second encoder, execute encoder redetection processing of driving the joint of the robot arm on a basis of the detection result of the first encoder and redetecting the position information by the second encoder.

Robot apparatus, control method for controlling the same, non-transitory computer-readable recording medium, manufacturing system, and method for manufacturing an article

To improve production efficiency while maintaining stability of an operation of a robot arm. A dust position determination unit determines whether there is a read error based on a read result of a detection head of an encoder. In a case where the dust position determination unit determines that there is a read error, an error determination unit judges in which region, among an allowable region and a non-allowable region, the read error occurs. In a case where the read error is judged to occur in the allowable region, the error determination unit continues an operation of the robot arm.

Robot apparatus, robot control method, method for manufacturing part, and recording medium

A driving circuit includes a plurality of output terminals to be electrically connected to scan wirings, respectively, a scan controlling unit for selecting one or plural output terminals to output a driving signal for the scan wiring from among the plurality of output terminals, and a potential correcting unit for controlling a potential of the driving signal on the basis of a difference voltage between the potential of the selected output terminal and a reference potential. In addition, a reference potential adjusting unit adjusts the reference potential in response to a current passing through the selected output terminal in order to correct a voltage drop caused by a member connected to the selected output terminal. The reference potential adjusting unit changes adjustment of the reference potential in response to the number of the selected output terminals and turns off adjustment of the reference potential in the case that the number of the selected output terminals is more than 1.

Driving circuit and image display apparatus

A drive circuit of a display panel having wirings and display devices connected to the wirings includes a first switch that transits potential of the wirings toward a first potential, a feedback amplifier that maintains the potentials of the wirings at the first potential, and a second switch that selects whether or not to supply an output from the feedback amplifier to the wirings. In addition, a self switch controls the second switch by comparing the potential of the wirings with a reference potential that is higher by a predetermined value than the first potential. The first switch and the second switch are connected to the wirings in parallel, and a drive performance of the first switch is lower than that of the second switch.

Drive circuit of display panel and display apparatus

A scanning circuit and an image display device in which the influence of losses in a signal path to scanning wiring and a scanning signal output circuit can be reduced. By considering matrix drive in which one row is driven at a time and two or more of the rows are not simultaneously driven, the 480 rows are divided into six modules and one feedback circuit is provided in correspondence with each module to perform feedback control of the output buffers corresponding to 80 rows. An output from a switch is amplified by an operational amplifier and is input as a compensation signal to all the output buffers by an output voltage compensation circuit. Compensation for a voltage drop is made by using the compensation signal for an increase in voltage such that the apparent voltage drop due to the output current is limited to a small value.

Scanning circuit and image display device

The present invention discloses an invention about a drive waveform for driving an image display unit. In particular, the present invention discloses the structure of using as a drive waveform a drive waveform signal which is level controlled by a plural of discontinuous levels including a minimum level which is a level corresponding to luminance brightness gradation data which is not 0, at least one non-minimum level which is a level corresponding to larger luminance brightness gradation data, and an intermediate level between the above-described minimum level and the above-described non-minimum level, and is given pulse width control with discontinuous pulse width, and which has a portion, which is controlled with the above-described minimum level, in its trailing edge, and a portion, which is controlled with the above-described intermediate level just before the former portion, when it has the portion controlled by the above-described non-minimum level.

Drive circuit, display device, and driving method

The present invention can provide a driving apparatus capable of compensating an influence of a voltage drop at low costs in a simple manner, which includes: a column driver circuit that generates at least one of modulation signals different in start reference time in one horizontal scanning period and the modulation signals obtained by using pulse width modulation and voltage amplitude modulation in combination; and a correction circuit that corrects a voltage of the row selection signal so as to suppress a voltage variation of the row selection signal, which is caused due to at least a resistance of an output stage of the row driver circuit and a current caused to flow into the resistance.

Driving apparatus, driver circuit, and image display apparatus

An image display apparatus having a plurality of image forming devices. In an output circuit provided between constant voltage supplies and wiring for driving each of the image forming devices, MOSFETs are successively turned on from the one having a higher ON resistance at the time of switching to make a stepwise transition between outputs from the constant voltage supplies, and have steady potential, thereby limiting undesirable variation in signal potential at the time of switching.

Image display apparatus

A modulator includes a modulation circuit for generating modulation signals based on inputted luminance data and for outputting the modulation signals to a plurality of image display elements, each of which is driven by a potential difference between a selection potential applied within a predetermined time period by a selection circuit and the modulation signal. The modulation signal has a waveform which is a combination of a plurality of unit pulses, with the unit pulses having an identical width and n kinds of peak values A1 to An, with n being an integer greater than 1, and A1&#x3c;. . . &#x3c;An. Additionally, the unit pulses are combined in such a way that maximal peak value portions of the waveform of the modulation signal are dispersed, and that a rising portion and a falling portion of the waveform have a stair-step-like shape.

Driving device and image display apparatus

A drive waveform signal which is level controlled by discontinuous levels including a minimum level corresponding to luminance brightness gradation data which is not 0, at least one non-minimum level corresponding to larger luminance brightness gradation data, and an intermediate level between the minimum and non-minimum level. The signal, which is employed to drive an image display unit, is given pulse width control with discontinuous pulse width, and has a portion, controlled with the minimum level, in its trailing edge, and a portion, controlled with the intermediate level just before the former portion, when it has the portion controlled by the non-minimum level.

A drive circuit includes a drive transistor connected at a pair of its main electrodes respectively to a drive output terminal side and a reference voltage source VEE side, an operational amplifier for controlling an output voltage that is output from the drive transistor, a detection transistor for detecting a current that flows through the drive transistor, a first feedback loop for detecting an output voltage at the drive output terminal and feeding back the output voltage to the operational amplifier, and a second feedback loop for detecting an output current of the detection transistor and feeding back the output current to the operational amplifier. The drive transistor and the detection transistor form a mirror circuit.

Growing community of inventors

Kanagawa, Japan

Kenji Shino