Abstract: A game machine makes it possible to make an accurate determination of not only success but also failure with regard to a predetermined play action, and can handle various play rules. The game machine includes at least one game machine main body, and at least one game machine sub unit configured to enable a play by being arranged in a predetermined position on the game machine main body, and is characterized in that, to provide an evaluation of successful play when the game machine sub unit is positioned in the predetermined position on the game machine main body, the game machine main unit and/or the game machine sub unit is provided with a position grasping unit for grasping a positional relationship of the main body and the sub unit. The position grasping unit includes a sensing device utilizing an electric change.

Abstract: A game machine makes it possible to make an accurate determination of not only success but also failure with regard to a predetermined play action, and can handle various play rules. The game machine includes at least one game machine main body, and at least one game machine sub unit configured to enable a play by being arranged in a predetermined position on the game machine main body, and is characterized in that, to provide an evaluation of successful play when the game machine sub unit is positioned in the predetermined position on the game machine main body, the game machine main unit and/or the game machine sub unit is provided with a position grasping unit for grasping a positional relationship of the main body and the sub unit. The position grasping unit includes a sensing device utilizing an electric change.

Abstract: An imaging apparatus moves a lens in the optical axis direction with respect to the initialization position, and images a subject. The imaging apparatus includes a first lens, a second lens, a driving unit, a first position detection sensor, a second position detection sensor, a third position detection sensor, and a control unit. The driving unit moves the first lens and second lens in the optical axis direction. The first position detection sensor detects the position of the first lens. The second position detection sensor detects the position of the second lens. The third position detection sensor detects the position of the first lens and the position of the second lens. On the basis of the output from the third position detection sensor, the control unit executes the initializing processing of determining the initialization positions of the first lens and second lens.

Abstract: An imaging apparatus according to the present disclosure includes: a focus lens, a motor for driving the focus lens, an origin detection unit for detecting an arrival of the focus lens at a reference position, a drive amount detection unit for detecting an amount of drive of the focus lens driven by the motor, and a controller for recognizing a position of the focus lens based on an output from the drive amount detection unit and for controlling the position of the focus lens. The controller receives a detection signal from the origin detection unit during driving the focus lens, and determines an occurrence of step-out of the motor based on both the received detection signal and the position of the focus lens recognized by the controller.

Abstract: An imaging apparatus moves a lens in the optical axis direction with respect to the initialization position, and images a subject. The imaging apparatus includes a first lens, a second lens, a driving unit, a first position detection sensor, a second position detection sensor, a third position detection sensor, and a control unit. The driving unit moves the first lens and second lens in the optical axis direction. The first position detection sensor detects the position of the first lens. The second position detection sensor detects the position of the second lens. The third position detection sensor detects the position of the first lens and the position of the second lens. On the basis of the output from the third position detection sensor, the control unit executes the initializing processing of determining the initialization positions of the first lens and second lens.

Abstract: An imaging apparatus according to the present disclosure includes: a focus lens, a motor for driving the focus lens, an origin detection unit for detecting an arrival of the focus lens at a reference position, a drive amount detection unit for detecting an amount of drive of the focus lens driven by the motor, and a controller for recognizing a position of the focus lens based on an output from the drive amount detection unit and for controlling the position of the focus lens. The controller receives a detection signal from the origin detection unit during driving the focus lens, and determines an occurrence of step-out of the motor based on both the received detection signal and the position of the focus lens recognized by the controller.

Abstract: The imaging apparatus includes a focus lens, a front zoom lens disposed on a subject side of the focus lens, a rear zoom lens disposed on an image side of the focus lens, a focus drive unit configured to drive the focus lens, a zoom drive unit configured to drive the front and rear zoom lenses, a focus origin point detector provided in a movable range of the rear zoom lens, configured to detect a focus origin point of the focus lens, and a controller configured to control the focus drive unit and the zoom drive unit. When the controller loses track of a position of the focus lens, the controller drives the focus lens in accordance with a relative movement amount of the front and rear zoom lenses by the zoom drive unit to move the focus lens to the focus origin point.

Abstract: A motor control device includes a DC motor, a power source configured to supply power to each of the DC motor and a load unit, and a controller configured to control power supply to the DC motor and the load unit. When reducing the power to be supplied to the DC motor, the controller increases the power to be supplied to the load unit during a predetermined period of time including a timing at which the power to be supplied to the DC motor is reduced.

Abstract: The imaging apparatus includes a focus lens, a front zoom lens disposed on a subject side of the focus lens, a rear zoom lens disposed on an image side of the focus lens, a focus drive unit configured to drive the focus lens, a zoom drive unit configured to drive the front and rear zoom lenses, a focus origin point detector provided in a movable range of the rear zoom lens, configured to detect a focus origin point of the focus lens, and a controller configured to control the focus drive unit and the zoom drive unit. When the controller loses track of a position of the focus lens, the controller drives the focus lens in accordance with a relative movement amount of the front and rear zoom lenses by the zoom drive unit to move the focus lens to the focus origin point.

Abstract: A motor control device includes a DC motor, a power source configured to supply power to each of the DC motor and a load unit, and a controller configured to control power supply to the DC motor and the load unit. When reducing the power to be supplied to the DC motor, the controller increases the power to be supplied to the load unit during a predetermined period of time including a timing at which the power to be supplied to the DC motor is reduced.

Abstract: A motor control device includes a counter that counts pulses output from a one-phase encoder according to rotation of a DC motor, and a controller that recognizes rotation number of the DC motor based on the number of pulses counted by the counter. After the DC motor is braked, the controller starts applying a predetermined voltage to the DC motor at first timing before the DC motor stops, and stops applying the predetermined voltage at second timing after the DC motor stops. The controller subtracts the number of pulses generated after the second timing from a value counted by the counter. The predetermined voltage is lower than a lowest voltage necessary for driving a driven object, and is higher than a lowest voltage necessary for rotating the DC motor against an attracting force between a magnet and a coil in the DC motor.

Abstract: A system and method are provided for controlling bandwidth allocation in a wireless local area network (wLAN). The method comprises: expressing device bandwidth allocations in terms of a time base; in response to expressing the bandwidth allocation in terms of a time base, monitoring network communications; and, measuring the allocated bandwidths. The method may further comprise: establishing polling schedules in response to expressing the bandwidth allocation in terms of a time base; and, de-energizing devices in response to the polling schedules. Expressing device bandwidth allocations in terms of a time base includes establishing: an inter-transmission opportunity (TXOP) interval; and, a TXOP jitter. These fields are supplied in the IEEE 802.11e transmit specification (TSPEC).

Abstract: When a transmission station having a voluntary transmission right transmits FINALL FRAME as a TXOP ending frame to HC, the HC transmits an acknowledgement frame ACK after SIFS following the reception of FINAL FRAME. Here, when the transmitting station has detected that no frame transmission is performed over the communication network from any other ESTAs in PIFS after the transmission of FINAL FRAME, FINAL FRAME is retransmitted in DIFS after the transmission of FINAL FRAME. By performing such a communication management, it is possible to accurately manage a voluntary transmission right even when the communication medium has a low reliability in a network in which one network pathway is time-shared by a plurality of communication apparatuses.

Abstract: A transmitting device includes: (i) an encoding rate managing section which controls an encoding rate of an encoding rate altering section which alters the encoding rate; (ii) an error resilience managing section which controls error resilience of an error resilience adding section; and a channel conditions measurement section which measures channel conditions of a communications medium. The encoding rate managing section and the error resilience managing section calculates a transmission capacity of packets in accordance with the channel conditions having been measured by the channel conditions measurement section, and then performs control of encoding rate setting or error resilience setting in accordance with the calculated transmission capacity.

Abstract: A home theater includes a main unit section and at least one speaker section. The main unit section includes a communication section which receives an AV stream from an AV stream transmission device and via a communication network, a demux section which separates the AV stream into a video stream and an audio stream, a video processing means which processes the video stream so as to generate a video signal, an audio processing section which processes the audio stream so as to generate an audio signal, and an audio acquisition section which acquires an audio stream which includes at least a part of the audio of the AV stream. The communication section transmits the audio stream acquired by the audio acquisition section to the speaker section, via the communication network.

Abstract: To transmit a packet to be transmitted, a transmitting station specifies information indicating an expiration time for the packet. Upon receiving the packet, a receiving station analyzes the expiration time information to output data to the upper layer based on the information. This enables more efficient transmission while following the Strict Order, in a transmission/receipt system where realtime data is transfer using a collective DELAYED-ACK returned instead of ACKs for multiple packets.

Abstract: A central control station carries out allocations of transmission rights according to a rule that a value obtained by subtracting (i) a value of a broken line (11) from (ii) a value of a straight line (10) is always limited according to a certain constant value (TXOP bound) smaller than C·T delay, where the broken line (11) indicates a sum of transmission granting time periods allocated from a certain time point t0 by “an actual transmission right allocation”, the straight line (10) indicates a sum of transmission right granted time periods allocated according to “a reference transmission right allocation obtained by the average data rate or the like of a communication station”, and C·T delay is an average sum of transmission right granted time periods allocated to the tolerable transmission delay time according to the reference transmission right allocation.

Abstract: A system and method are provided for controlling bandwidth allocation in a wireless local area network (wLAN). The method comprises: expressing device bandwidth allocations in terms of a time base; in response to expressing the bandwidth allocation in terms of a time base, monitoring network communications; and, measuring the allocated bandwidths. The method may further comprise: establishing polling schedules in response to expressing the bandwidth allocation in terms of a time base; and, de-energizing devices in response to the polling schedules. Expressing device bandwidth allocations in terms of a time base includes establishing: an inter-transmission opportunity (TXOP) interval; and, a TXOP jitter. These fields are supplied in the IEEE 802.11e transmit specification (TSPEC).

Abstract: A system and method are provided for controlling bandwidth allocation in a wireless local area network (wLAN). The method comprises: expressing device bandwidth allocations in terms of a time base; in response to expressing the bandwidth allocation in terms of a time base, monitoring network communications; and, measuring the allocated bandwidths. The method may further comprise: establishing polling schedules in response to the time-based bandwidth allocation; and, de-energizing devices in response to the polling schedules. Expressing device bandwidth allocations in terms of a time base includes establishing: an inter-transmission opportunity (TXOP) interval; and, a TXOP jitter. These fields are supplied in the IEEE 802.11e transmit specification (TSPEC). Then, de-energizing devices in response to the polling schedule includes disengaging transmission and receiving functions in the minimum TXOP intervals between polling events, where the minimum TXOP interval is the inter-TXOP interval minus the TXOP jitter.

Abstract: A communication system includes: a communication apparatus which is a clock master including an upper clock indicating a first apparatus time; a time detection section which detects the first apparatus time and a first reference time at substantially the same time; and a sending section by which the detected first apparatus time and first reference time to a non-clock master; a communication apparatus which is a non-clock master including an upper clock indicating a second apparatus time; a time detection section which at substantially the same time detects a second reference time synchronized with the first reference time and the detected second apparatus time; a receiving section receiving the first apparatus time and the first reference time; and an adjustment section by which the upper clock is adjusted with reference to the second apparatus time, the second reference time, the first apparatus time, and the first reference time.