Abstract: A display apparatus including: a liquid crystal panel for displaying left and right images; a liquid crystal driver for writing an image signal into the liquid crystal panel; a backlight source for radiating light to the liquid crystal panel; and a controller for controlling the backlight source so that it emits the light during first emission periods which are set for a left viewing periods while a left image is viewed with a left eye and right viewing periods while a right image is viewed with a right eye, respectively, wherein the controller controls the backlight source so that it emits the light during a second emission period within a non-viewing period, during which no image is viewed, and sets a turn-off period during which the backlight source is turned off between the first and second emission periods.

Abstract: Respective video feeds are provided to at least two viewers using a common display. The display is controlled to alternately display an image from a first video feed and an image from a second video feed. A first shuttered filter is synchronized to the display such that the first filter is shuttered when the second video feed image is displayed, and a second shuttered filter is synchronized to the display such that the second filter is shuttered when the first video feed image is displayed. Only the first video feed image is provided to a first viewer using the first shuttered filter, and only the second video feed image is provided to a second viewer using the second shuttered filter.

Abstract: A system that incorporates teachings of the present disclosure may include, for example, presenting a plurality of unassociated media programs from a single presentation device having overlapping presentation periods, receiving information from a viewing apparatus to adjust an intensity of emitted light associated with one of the unassociated media programs, and adjusting the intensity of the emitted light in a manner that is detectable by the viewing apparatus supplying the information. Other embodiments are disclosed and contemplated.

Abstract: Different full screen content is displayed on the same television at the same time from the perspective of the viewer by displaying as the content as two full screen sequential frames. The different full screen content may be provided as a single combined frame signal such as a side-by-side, top-bottom, or checkerboard signal which is then displayed as two sequential full screen frames. Configured glasses such as polarized or shutter are used to view the different content as full screen content where one pair of configured glasses views an initial one of the sequential frames but blocks the subsequent one and another pair of configured glasses blocks the initial one of the sequential frames and views the subsequent one. Shutter glasses have both lenses open during the initial frame and both closed during the subsequent one. For polarized glasses, the initial frame has a polarization matching both lenses of one pair of glasses while the subsequent frame has a polarization that differs from both lenses.

Abstract: Glasses and a method for pairing thereof are provided. The method includes: if a preset event occurs, determining whether a transmission packet for driving the glasses has been received from a display apparatus; and if the transmission packet is determined not to have been received, automatically performing a pairing of the glasses with the display apparatus.

Abstract: A method is provided for sharing a display. The method includes displaying periodically a first image sequence on the display in synchronicity with a first signal, and displaying periodically a second image sequence on the display in synchronicity with a second signal. The method also includes selecting by a user the first image sequence for viewing, and shuttering periodically a set of goggles for the user in synchronicity with the first signal. A method is provided for sharing a display. The method includes displaying periodically a private image sequence on the display in synchronicity with a first signal, and displaying periodically a non-private image sequence on the display. In the method, the private image sequence and the non-private image sequence combine to form a public image sequence on the display. A system is provided for sharing a display.

Abstract: The present invention relates to an operation method of shutter glasses based 3D display device, which alternatively supplies left-eye and right-eye frame signals to a liquid crystal panel to drive the liquid crystal panel, which cooperate with illumination of a scanning back light unit and timing control of the shutter glasses to simulate left and right eyes respectively with left-eye and right-eye signals for perception of a 3D image, wherein in a period of a current frame signal, duty time of each of blocks of the back light unit is located between the time when liquid crystal corresponding to the block completely responds after being driven by the current frame signal and the time when the liquid crystal corresponding to the block starts to respond as being driven by a subsequent frame signal, and the duty time of each of the blocks is divided into duty1, a duty time that precedes completion of response of liquid crystal, and duty2, a duty time that succeeds the completion of response of liquid crystal, l

Abstract: A stereoscopic display system and a driving control method thereof are provided. The stereoscopic display system comprises a display device displaying images by dividing a first field and a second field in one image frame, and shutter spectacles controlling opening and closing of a binocular shutter corresponding to a light emitting period of a binocular view point image of the first field and the second field, and wherein the binocular shutter is closed earlier than a finishing point of each light emitting period of the binocular view point image by a first period.

Abstract: A stereoscopic image display includes: a display device that time-division displays left-eye image data and right-eye image data; shutter glasses comprising a left-eye shutter and a right-eye shutter alternately turned on and off in synchronization with the display device; and a backlight unit that irradiates light to the display device and is periodically turned on and off such that the backlight unit is turned on when a predetermined time determined according to a response time of liquid crystal lapses from a start point of a frame period.

Abstract: An imaging apparatus includes: a first imaging controller configured to control imaging by an imaging unit; a movement distance acquirer configured to acquire movement distance of the imaging unit required to generate a three-dimensional image of the imaged subject after imaging by the first imaging controller; a first determining unit configured to determine whether or not the imaging unit has moved the movement distance acquired by the movement distance acquirer; a second imaging controller configured to control imaging with respect to the imaging unit in the case where it is determined by the first determining unit that the imaging unit has moved the movement distance; and a three-dimensional image generator configured to generate a three-dimensional image from the image acquired by the first imaging controller and the image acquired by the second imaging controller.

Abstract: When an image frame is generated, a plurality of backlight blocks are driven according to percentage of the image frame being generated, and a left shutter and a right shutter of a pair of shutter glasses are switched according to the time the image frame is generated. In this way, ghost shadows resulting from right eye images or left eye images can be avoided.

Abstract: An actively shuttered glasses synchronization signal generated by a 3D TV is detected by a device that has an output display. A periodicity of actuation of the actively shuttered glasses synchronization signal is determined. A display refresh rate of the output display is synchronized to the periodicity of actuation of the actively shuttered glasses synchronization signal. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

Abstract: The present invention discloses a stereoscopic image display system and a method of controlling the same. An eye tracking module locates current 3D spatial positions of the viewer's eyes, and generates the information of both left and right eyes' current 3D spatial positions. A control module controls a display device that can alter the direction of the light outputted, and outputs images on the display device in time multiplex mode. The light containing the left eye image is outputted to the position of left eye instead of right eye at one time point, and the light containing the right eye image is outputted to the position of right eye instead of left eye at another time point, so that a stereoscopic image is perceived according to the parallax theory. The present invention enlarges the visual range of stereoscopic image and achieves a better stereoscopic image visual experience for viewers.

Abstract: A stereoscopic image display apparatus according to an embodiment includes: a display device including a display panel including pixels, and an optical plate controlling light rays emitted from pixels; a camera provided in the display device; a face tracking unit making a decision whether a viewer exists in front of the display device based on an image picked up by the camera, and if the viewer exists, sampling and detecting a distance from the display device to the viewer and a position of the viewer; a memory storing the position of the viewer sampled and detected by the face tracking unit; and an image display control unit estimating the position of the viewer based on the position of the viewer stored in the memory and driving and controlling the display panel on based on the estimated position, when the face tracking unit does not recognize that the viewer exists.

Abstract: A television consistent with certain implementations has a display system having a display frame refresh rate R. A frame synchronizer transmitter transmits a signal used to synchronize frame refreshes for a left and right eye images of shutter glasses, where a sequence of left and right eye images to the shutter glasses defines one image cycle. A video processor that alters at least one image per image cycle so that at least one of the images to at least one eye of at least one of the shutter glasses is synchronized to a display frame that has been altered by the video processor. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

Abstract: To adaptively perform display control by a display apparatus in accordance with characteristics of shutter glasses, the state of a viewer wearing the shutter glasses, etc. Glasses information, such as the chromaticity point, the luminance, and the opening response time when a shutter is opened, which is dependent on the material of a liquid crystal used for the shutter, is sent from shutter glasses 13 to a display apparatus. A display apparatus 11 receives glasses information from the shutter glasses 13 worn by a viewer, and performs image correction, such as chromaticity point correction and luminance adjustment, and opening/closing control timing control, on each of a left-eye image and a right-eye image. It is possible to provide three-dimensional images with correct colors, suitable luminance, and small crosstalk without being dependent on the viewer's subjectivity.

Abstract: A system that incorporates teachings of the present disclosure may include, for example, presenting a plurality of unassociated media programs from a single presentation device having overlapping presentation periods, receiving information from a viewing apparatus to adjust an intensity of emitted light associated with one of the unassociated media programs, and adjusting the intensity of the emitted light in a manner that is detectable by the viewing apparatus supplying the information. Other embodiments are disclosed and contemplated.

Abstract: A method of operation of three dimensional (3D) stereoscopic television consistent with certain implementations involves turning on or installing a set of 3D glasses on a viewer to cause the set of 3D glasses to enter an active operational mode; and at the 3D glasses, emitting a signal to the television that causes the television to switch from a 2D display mode to a 3D display mode. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

Abstract: A method and system for displaying an image in three dimensions during a frame period. The method includes generating a left image sub-frame and a right image sub-frame. The left image sub-frame defines a visual perspective of a left eye and the right image sub-frame defines a visual perspective of a right eye for the image. The method further includes displaying the left image sub-frame utilizing a first plurality of colors and displaying the right image sub-frame utilizing a second plurality of colors. The first plurality of colors is distinct from the second plurality of colors.

Abstract: A hand-held image display apparatus includes a touch panel, a stereoscopic display apparatus, a first imaging section, and a second imaging section. The hand-held image display apparatus detects a marker from a real world image shot by at least one of the first imaging section and the second imaging section, and determines the relative positions of a virtual object and a pair of virtual cameras with respect to each other in a virtual space, based on the result of the detection. Then, the hand-held image display apparatus superimposes virtual space images drawn based on the first virtual camera and the second virtual camera, onto the real world images shot by the first imaging section and the second imaging section, and displays images that are stereoscopically visible by naked eyes, on the stereoscopic display apparatus.

Abstract: Stereoscopic teleconferencing techniques described herein are directed toward systems including a plurality of telecommunication stations. A first telecommunication station includes a stereoscopic camera, a pair of shutter glasses, and a first processing unit. A second telecommunication station includes a display, a pair of shutter glasses, and a processing unit. The stereoscopic camera of the first telecommunication station generates a set of stereoscopic images including one or more users. The processing unit of the first telecommunication station determines a location of the shutter glasses in the sets of stereoscopic images and replaces the image of the shutter glasses with the corresponding portion of the given user's face to generate modified sets of stereoscopic images. The display of the second telecommunication station outputs the modified sets of stereoscopic images.

Abstract: A video-image selection unit cyclically acquires at least two types of video images. A replacing mask determination unit selects, for each acquired video image, a mask pattern for masking a video image acquired by the video-image selection unit by replacing some pixels composing the video image with pixels of a single color such that said some pixels are spatially removed. Based on the mask pattern, the video-image replacing unit replaces said some pixels composing the video image with the pixels of a single color. A video-image output unit outputs the video image for which the replacement was performed. When selecting a mask pattern, the replacing mask determination unit selects a mask pattern that is different from a mask pattern used for the last video image, the mask pattern being different in the position of pixels not to be replaced with pixels of a single color.

Abstract: The frequencies and the phases of frame timing signals are synchronized between a display apparatus and shutter glasses through a wireless network. The display apparatus counts a frame period and a period until the frame timing signal transitions next time after a beacon transmission timing using a TSF clock and transmits a synchronization packet in which these periods are described. On a shutter glasses side, when the synchronization packet has been received, the frequencies are synchronized on the basis of a difference between frame periods measured by both of them. In addition, phase control is performed on the basis of a difference between periods until next frame timing signals after a beacon is transmitted, which are measured by both of them.

Abstract: A method of operation of three dimensional (3D) stereoscopic television consistent with certain implementations involves turning on or installing a set of 3D glasses on a viewer to cause the set of 3D glasses to enter an active operational mode; and at the 3D glasses, emitting a signal to the television that causes the television to switch from a 2D display mode to a 3D display mode. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

Abstract: Stereoscopic 3-D active shutter glasses with multiple IR, RF, and other receivers configured for different TV brands are presented. In some embodiments, the multiple receivers and their accompanying logic circuits can be embedded in the glasses and selected automatically from a lookup table. Various logic for demodulating or otherwise decoding signals can be downloaded off the Internet for different brands. In other embodiments, each receiver and accompanying logic circuit can be plugged in to the glasses as a separate module corresponding to each brand or TV model.

Abstract: An electronic display device includes a display unit including a plurality of scan lines, a plurality of data lines, and a plurality of pixels, and a barrier unit covering the display unit, including a plurality of first areas and a plurality of second areas alternately arranged along a length direction of the data lines, a first electrode group respectively provided in each of the first areas, each of the electrode groups including a plurality of first sub-electrodes and a plurality of second sub-electrodes alternately arranged along a length direction of the scan lines, a second electrode group provided in each of the second areas on a layer that is different from a layer on which the first electrode group is provided, each of the second electrode groups including a plurality of third sub-electrodes and a plurality of fourth sub-electrodes alternately arranged along the length direction of the scan line, and an insulation layer between the first and second electrode groups.

Abstract: The present invention discloses a video system provided with a display device for displaying a video image including a first video image and a second video image and an eyeglass device for assisting a viewer in viewing the video image, wherein the display device includes: a display for displaying the first and second video images; a first generator for generating a synchronizing signal in synchronization with the first video image; and a transmitter for transmitting the synchronizing signal to the eyeglass device, and the eyeglass device includes: a receiver for receiving the synchronizing signal; a second generator for generating an internal signal in synchronization with the second video image, based on the synchronizing signal; an optical filter portion for adjusting amounts of incident light to left and right eyes, respectively; and a controller for controlling the optical filter portion based on the internal signal.

Abstract: Provided is a stereoscopic video presenting apparatus including: an eye movement measurement unit configured to measure an eye movement of each of users viewing the stereoscopic video; a user count determination unit configured to determine the number of users viewing a same stereoscopic video; and a failure state determination unit configured to compare, when the user count determination unit determines that the number of users viewing the same stereoscopic video is plurality, eye movements of a plurality of users to determine a user whose eye movement is in a failure state among the plurality of users.

Abstract: A testing system including a preset display device, preset shutter glasses and a testing device is disclosed. The preset display device generates a synchronization signal and outputs a timing signal relating to the synchronization signal. The preset shutter glasses receive the synchronization signal to generate a masking signal. The testing device processes the timing signal and the masking signal according to a setting signal and determines whether the preset shutter glasses are normal according to the processed result.

Abstract: An image display apparatus for displaying a 3D video signal using a liquid crystal device such as an HIPS or LCOS device comprises a frame rate converter (3) that converts the input video signal to a doubled frame rate, a signal format converter (4) that converts the pixel sequence of the video signal, a light source controller (7) that outputs a light source control signal for turning the light source used for image display on and off, and a 3D glasses controller (8) that generates a glasses control signal (c3) for shutters (64R, 64L) that switch the transmission of the light to the right and left eyes of 3D glasses (64). The risk of crosstalk between the right and left images, due to device response speed is reduced, without requiring a large number of frame memories.

Abstract: In general, in one aspect, a three dimensional (3D) display includes an optical stack, a backlight, panel electronics and a backlight driver. The optical stack is to present left eye and right eye images. The backlight is to illuminate the optical stack so the left eye and right eye images are visible and to provide signals for synchronizing the image illuminated on the optical stack with shutter glasses worn by a user to enable a left eye to view the left eye images and a right eye to view the right eye images. The panel electronics are to generate the left eye and right eye images on the optical stack. The backlight driver is to control operation of the backlight.

Abstract: A 3-dimensional (3D) display apparatus and a 3D display method thereof are provided. The 3D display apparatus includes: a display unit which outputs a plurality of image frames; a synchronization signal processor which generates a synchronization signal corresponding to the image frames; a controller which acquires period information of first and second sequences of the synchronization signal and determines whether the synchronization signal has been stabilized, according to change information of the period information; and a communicator which determines time information of the stabilized synchronization signal according to the determination result and transmits shutter control data, which is generated based on the time information, to 3D glasses.

Abstract: When the video images to be played back are three-dimensional (3D) images each including a first parallax image and a second parallax image obtained when an object in a 3D space is viewed from different viewpoints, a video attribute determining unit determines whether or not the frame rate of the images is within a predetermined frame rate range at which a flicker is likely to occur. When the frame rate of the 3D images is within the predetermined frame rate range, a frame rate converter raises the frame rate of the 3D images until the frame rate exceeds the predetermined frame rate range.

Abstract: A display control circuit includes: a device drive unit writing left and right images alternately into a light modulation device in time division based on time-division display type stereoscopic image data including the left and right images; a shutter glass drive unit driving opening and closing of liquid crystal shutters in the shutter glasses; a light source drive unit maintaining the total sum of light source current to be constant over cycles when an opening and closing period of the liquid crystal shutters is taken as one cycle; and a control unit controlling the timing of opening and closing the liquid crystal shutters with respect to the shutter glass drive unit, the timing of writing the left and right images with respect to the device drive unit and the luminance level of the light source in the opening and closing period with respect to the light source drive unit.

Abstract: A 3D display system is provided. The 3D display system includes a shutter glasses, a display apparatus and a transmitter module. The shutter glasses includes a left eye shutter and a right eye shutter. The shutter glasses controls a switching frequency of the left eye shutter and the right eye shutter according to a radio frequency signal. The display apparatus alternately displays left and right eye images according to an update frequency. The transmitter module detects the update frequency and provides the radio frequency signal to the shutter glasses when detecting that the update frequency has changed, wherein the radio frequency signal includes the changed update frequency.

Abstract: A direction-controlled illumination unit for an autostereoscopic display, which unit deflects light from activated illumination elements through a transmissive image reproduction means in the space in front of the display into visibility areas, from which a stereoscopic and/or monoscopic representation can be seen. The direction-controlled illumination unit contains an illumination means having illumination elements, an imaging means having imaging elements, a prism arrangement, a light-scattering means and an image reproduction means. A respective imaging element is assigned a number of illumination elements in order to deflect light in the form of a beam onto observers' eyes in a sequential manner in terms of time.

Abstract: A wireless signal transmission device of the present invention includes a wireless signal transmission section for, when an image display device displays a 3D image, (i) a sync signal indicative of timing at which a right-eye image and a left-eye image included in the 3D image are switched and (ii) an optical shutter control signal for controlling optical shutters of 3D image glasses which optical shutters alternately transmit and shut the right-eye image and the left-eye image, and for, when the image display device displays an image other than a 3D image, periodically transmitting a certain signal which does not include at least optical shutter control data.

Abstract: A shuttered filter apparatus comprises a frame, one or more shuttered filters attached to the frame, and a tracker attached to the frame. Each shuttered filter is configured to selectively prevent a viewer from seeing through the filter in response to a signal from a controller. The tracker is configured to sense an orientation of the one or more shuttered filters relative to a video screen. The controller may use a signal from the tracker indicative of an orientation of the shutter filter(s) relative to enable shuttering when the shuttered filter apparatus is facing toward the video screen and disable shuttering when the shuttered filter apparatus is facing away from the video screen.

Abstract: Apparatus, systems and methods of providing respective video signals to at least two viewers using a common display are disclosed. An image from a first video signal corresponding to a left perspective of a scene and an image from a second video signal corresponding to a right perspective of the scene are alternately displayed with the display. A first shuttered filter is synchronized to the display such that the first filter is shuttered when the left perspective image is displayed and a second shuttered filter is synchronized to the display such that the second filter is shuttered when the right perspective image is displayed, thereby alternately providing left and right perspective images for perception as a 3D images. In addition, display of one or more images from an additional video signal on the display is synchronized with shuttering of one or more additional shuttered filters.

Abstract: A system and method for improving stereoscopic images produced by a projecting device containing a single chip DMD, seen through an eye-switching device, such as a pair of liquid crystal (LC) shutter glasses. The system and method are used with a video projector used with a multiple-color, color switching device The color switching device produces Blue, Red and Green lights and at least one non-critical segment. A color sequencing firmware resident in the video projector is used to align a non-critical segment in front of the projector's main light source during the eye-switching device's unstable transition phase. If the non-critical segment is transmissive, the firmware controls the DMD so light is discontinued. If the non-critical segment is non-transmissive, light is physically blocked. If the non-critical segment is electronically defined, the firmware directly controls the DMD to discontinue the transmission of light for the duration of device's unstable transition phase.

Abstract: Provided is a highly efficient 2D-3D switchable display device. The image display device includes a display unit forming an image, and a switching visual field separation unit switching the image formed by the display unit into a 2D image or a 3D image, and comprising a lens array for separating a visual field and a liquid crystal lens controlled so as to have a refractive power offsetting or reinforcing a refractive power of the lens array.

Abstract: [Object] To enable suitable automatic switching of shutter glasses when receiving a multiplexed stream including, in a time sharing manner, a first video stream in which 2-dimensional image data has been inserted and a second video stream in which 3-dimensional image data has been inserted, and performing image display. [Solution] Advance information obtained from a transport stream is inserted at the transmission side with leeway of time T as to the switching timing between the first video stream and the second video stream. Based on this advance information, a shutter mode switching command is transmitted from a shutter control unit to shutter glasses, at a timing earlier than shutter mode switching timing. Based on this shutter mode switching command, the shutter mode is switched at the shutter glasses in accordance with the switching timing from the 3-dimensional image display to the 2-dimensional image display.

Abstract: Provided are a mask addition unit for adding a mask to an input image of a two-dimensional (2D) image on the basis of a parameter for converting the 2D image into a three-dimensional (3D) image by a monocular stereopsis principle, a conversion unit for converting the input image to which the mask is added by the mask addition unit into a right-eye image and a left-eye image by the monocular stereopsis principle, and a display unit for displaying the right-eye image and the left-eye image.

Abstract: An image display apparatus for displaying a 3D video signal using a liquid crystal device such as an HTPS or LCOS device comprises a frame rate converter (3) that converts the input video signal to a doubled frame rate, a signal format converter (4) that converts the pixel sequence of the video signal, a light source controller (7) that outputs a light source control signal for turning the light source used for image display on and off, and a 3D glasses controller (8) that generates a glasses control signal (c3) for shutters (64R, 64L) that switch the transmission of the light to the right and left eyes of 3D glasses (64). The risk of crosstalk between the right and left images, due to device response speed is reduced, without requiring a large number of frame memories.

Abstract: A device for displaying multiple image streams each comprising multiple image frames that entertains multiple viewers includes at least three image generators for generating at least three separate image streams that each include multiple image frames. At least one of the image generators is configured for at least one viewer input. An image multiplexer is provided for interleaving image frames of each image stream to produce an interleaved image stream and a display is provided for showing the interleaved image stream. A method of displaying multiple image streams is also presented.

Abstract: A spectacles-type image display device comprises an image output unit for outputting image light of images to be displayed and a reflection unit disposed in a field of view of at least one eyeball of a viewer. The reflection unit is adapted to reflect the image light output from the image output unit toward the eyeball of the viewer so that the viewer can see virtual images of the images. The minimum value of a width of a projection cross-section of the reflection unit in an output direction of the image light to the eyeball is smaller than a dark-adapted pupil diameter of human and is larger than a light-adapted pupil diameter of human.

Abstract: An image display system includes an image display apparatus and a shutter device. The image display apparatus includes an image display section, a sync signal sending section which sends a sync signal for synchronizing display timings of the left-eye image and the right-eye image with the shutter device to the shutter device, and a protocol sending section which sends protocol information to the shutter device. The shutter device include a shutter section which transmits the left-eye image and the right-eye image, a shutter drive section which analyzes the sync signal received through a sync signal receiving section using the protocol information stored in a protocol storing section and drives the shutter section on the basis of the analysis result, and a protocol updating section which updates the protocol information stored in the protocol storing section.

Abstract: An image system comprises an image display device which displays images, and image viewing eyeglasses used for viewing images displayed by the image display device.

Abstract: A stereoscopic image display apparatus includes: a liquid crystal display device that alternately displays a left-eye image in a first time frame and a right-eye image in a second time frame, the left-eye image and the right-eye image being images to be respectively viewed by left and right eyes of a viewer; and an LCD shutter glasses that includes: a left-eye shutter that covers the left eye of the viewer during the second time frame; and a right-eye shutter that covers the right eye of the viewer during the first time frame, wherein the liquid crystal display device sequentially displays a first left-eye image frame and a second left-eye image frame included in the left-eye image during the first time frame and sequentially displays a first right-eye image frame and a second right-eye image frame included in the right-eye image during the second time frame.

Abstract: A communication device allows control of a device to be controlled such as a display device based on reference timing acquired from reception data without delay and with low power consumption. A method for generating a control signal for controlling the device to be controlled, shutter glasses, and a communication system having the corresponding features are also disclosed. The communication device includes a timing signal identifying part which identifies whether or not a predetermined reference signal pattern exist in data incoming intermittently, and a control signal generating part which generates a control signal for the device to be controlled when the existence of the predetermined signal pattern is identified by the timing signal identification part, and a controller which performs the control of the communication device.