Patent application number | Description | Published |
20080278636 | Optical unit, video display apparatus, and color switching method - A projection-type video display apparatus has a polarizing beam splitter for matching light, which is outputted by a light source unit, to one of S polarizing light and P polarizing light, an optical characteristics switching element for electrically and periodically switching a wavelength band of light outputted by the polarizing beam splitter, a video display element, as a light valve element, for forming an optical image from light outputted by the light source unit, in accordance with a video signal, and a radiating unit for radiating a plurality of color light, which are sequentially outputted by the optical characteristics switching element, to the video display element, wherein light outputted by the video display element is incident on a projecting lens, and a light path from the light source unit to the projecting lens is U-shaped. Consequently, the projection-type video display apparatus becomes compact and has improved contrast. | 11-13-2008 |
20090041257 | SOUND PROCESSING UNIT, SOUND PROCESSING SYSTEM, AUDIO OUTPUT UNIT AND DISPLAY DEVICE - Practical speaker connection is identified using a device having a sound channel of a 5.1 channel or 7.1 channel, and a device is provided that can easily reproduce the optimum multiple channels. Actual speaker arrangement can be identified by, for example, measuring the impedance of a terminal at the side of an audio amplifier. If incorrect connection is found, a warning is issued. This information is transmitted to a signal source with an EDID and a signal with the optimum a number of sound channel is sent. The EDID is also used for the connection with a display unit and the speaker connection with which the display unit is provided uniquely. For example, a sound through the 7.1 channel is easily reproduced using the speaker of the display unit in the channel of the front speaker. | 02-12-2009 |
20090096799 | DISPLAY APPARATUS - A display apparatus includes a memory circuit for storing information regarding the display apparatus, a read enable unit for allowing an external device to read information from the memory circuit, and a write disable unit for inhibiting a write operation in the memory circuit when either one of the power sources of the display apparatus and the external device turns on, allowing the write operation in the memory circuit in response to a signal from an external terminal used by the read enable unit. | 04-16-2009 |
20090096800 | DISPLAY APPARATUS - A display apparatus includes a memory circuit for storing information regarding the display apparatus, a read enable unit for allowing an external device to read information from the memory circuit, and a write disable unit for inhibiting a write operation in the memory circuit when either one of the power sources of the display apparatus and the external device turns on, allowing the write operation in the memory circuit in response to a signal from an external terminal used by the read enable unit. | 04-16-2009 |
20090150961 | IMAGE TRANSFER APPARATUS xx - The invention has: a first register that is set when receiving a CEC message which a video signal source reads an EDID of a video transmitting apparatus and issues and is reset in response to a leading edge of 5V that is supplied from the video signal source; and a second register which reads an EDID of a video displaying apparatus, is set when it is decided that the video displaying apparatus is a predetermined video displaying apparatus, and is reset when a state where an HPD is in a state of āLā has continued for a predetermined period of time or longer. Only when both of the first and second registers have been set, it is determined that a predetermined video signal source, the video transmitting apparatus, and the video displaying apparatus have directly been connected. | 06-11-2009 |
20090153065 | ADDRESS DRIVE CIRCUIT AND PLASMA DISPLAY APPARATUS - A circuit configuration for realizing high impedance in an address drive circuit is provided in order to reduce the number of recovery switches without reducing power recovery efficiency. A mechanism for realizing the high impedance in an address drive circuit during a sustain period of a plasma display panel is provided. By achieving the high impedance, capacitance coupling between an X electrode and an address electrode and between a Y electrode and an address electrode can be cancelled, and a power recovery circuit can be simplified without reducing the power recovery efficiency. | 06-18-2009 |
20090207307 | IMAGE DISPLAY APPARATUS, MONITOR APPARATUS AND IMAGE PROCESSING APPARATUS - According to our invention, linked operation between a monitor apparatus for displaying images, and a set-top box for transmitting image signals to the monitor apparatus via a required interface, can be achieved properly, even if both units are constructed in casings separate from each other. The monitor apparatus uses a CEC line to transmit a CEC vendor command including at least a code associated with unit information, and the set-top box apparatus transmits the CEC vendor command including at least the code associated with the unit information. Upon receiving the vendor command from the set-top box apparatus, the monitor apparatus switches to the linked operation with the set-top box. | 08-20-2009 |
20090284514 | PLASMA DISPLAY APPARATUS AND ITS DRIVE CIRCUIT - In a plasma display apparatus and its drive circuit, a period that capacitance Cxa formed between an address electrode and an X-discharge maintaining electrode and capacitance Cya formed between the address electrode and a Y-discharge maintaining electrode are charged is provided when the address electrode is driven so that the address electrode is set to high-impedance state during a discharge maintaining period to reduce apparent capacitance. Furthermore, the charge period is set in a power withdrawing period and thereafter the address electrode is set to high-impedance state to change final arrival potential for power withdrawal to a discharge maintaining voltage. | 11-19-2009 |
20090290851 | Video Information Outputting Apparatus, Video Information Receiving Apparatus, Video Information Outputting Method and Video Information Transmitting Method - According to a video information outputting apparatus, a video information receiving apparatus, a video information outputting method and a video information transmitting method, for receiving and outputting digital video information. The digital information is outputted in the same quality as it is, when it is certificated that an external apparatus operates according to a copy control information, while no information limited on copying thereof is outputted when it is not. It thereby prevents the information, which is outputted from the video information outputting apparatus to an external apparatus, from being used in other purposes than the original object thereof, thereby giving disadvantages onto the producer and/or copyright owner of the information. | 11-26-2009 |
20100071018 | WIRELESS VIDEO TRANSMISSION DEVICE, WIRELESS VIDEO RECEPTION DEVICE, WIRELESS COMMUNICATION SYSTEM, AND CEC MESSAGE TRANSMISSION METHOD USED THEREFOR - After fixing the physical address of a wireless video transmission device to a route address or the like, it is possible to shorten the switchover time by having a conversion table provided that maps the physical addresses on the wireless video reception device side, since it does not occur that the addresses of AV equipment connected by wire with the wireless video transmission device are changed, even if the physical address of the wireless video reception device changes. Further, by performing split transfer of the CEC messages, it is possible to carry out transmission of the CEC messages promptly and to suppress reception confirmation bits with respect to CEC messages for which there exists no destination. | 03-18-2010 |
20100199298 | DATA READING METHOD, AND A VIDEO TRANSMITTER AND A VIDEO RECEIVER USING THE SAME - The present invention provides a data reading method, and a video transmitter and a video receiver using the same in which there is no video interruption time or a video interruption time is short during rewriting of EDID. | 08-05-2010 |
20100271548 | Video Apparatus - A video apparatus includes plural interface sections such as HDMI (Registered Trademark) sections for connection with plural video signal sources, a function transferring section which transfers functions of the interface sections, and one or more function blocks for use in common to the plural interface sections. The functions are assigned to the interface sections such as HDMI sections connected with the video signal sources, via switches for example, to minimize the number of the function blocks to be provided. | 10-28-2010 |
20110004909 | WIRELESS VIDEO TRANSMITTER - A technique is offered which is applied to a system for wirelessly sending and receiving control commands and which permits mutual communications owing to the control commands between a wireless video transmitter and wireless video receivers to be operated stably with low delay. The transmitter makes a decision as to whether commands received from the receivers are certain commands. If so, the transmitter assigns transmissible periods, in which the receivers can send commands, more preferentially to the wireless video receiver that has sent out the certain commands than the other wireless video receivers. | 01-06-2011 |
20110004911 | VIDEO TRANSMITTER APPARATUS AND VIDEO RECEIVER APPARATUS - A video receiver apparatus, for receiving video from a video transmitter apparatus, comprises: a memory portion for memorizing receiver apparatus information of the video receiver apparatus; and a transmitter/receiver portion for receiving a request for obtaining the receiver apparatus information transmitted from the video transmitter apparatus, and also for transmitting the receiver apparatus information memorized in the memory portion responding to the obtaining request, and wherein, further within the memory portion is memorized history information, changing depending on alternation of the receiver apparatus information, and wherein the receiver portion is able to receive the history information, which the video transmitter apparatus holds therein, as well as, the obtaining request from the video transmitter, and when the received history information from the video transmitter apparatus and the history information, which the video transmitter apparatus holds therein, are inconsistent with each other, then the receiver apparatus information memorized in the memory portion is transmitted to the video transmitter apparatus. | 01-06-2011 |
20110096935 | Sound Processing Unit, Sound Processing System, Audio Output Unit and Display Device - Practical speaker connection is identified using a device having a sound channel of a 5.1 channel or 7.1 channel, and a device is provided that can easily reproduce the optimum multiple channels. Actual speaker arrangement can be identified by, for example, measuring the impedance of a terminal at the side of an audio amplifier. If incorrect connection is found, a warning is issued. This information is transmitted to a signal source with an EDID and a signal with the optimum a number of sound channel is sent. The EDID is also used for the connection with a display unit and the speaker connection with which the display unit is provided uniquely. For example, a sound through the 7.1 channel is easily reproduced using the speaker of the display unit in the channel of the front speaker. | 04-28-2011 |
20110102589 | WIRELESS VIDEO TRANSMISSION DEVICE AND WIRELESS VIDEO RECEPTION DEVICE - A technique is provided for using, in a wireless video transmission device and a plurality of wireless video reception devices which intermittently perform signal reception processing within standby periods, a human body detection unit to accelerate the start-up of the wireless video transmission and reception devices. When the presence of a person is detected by the human body detector, a person detection signal is sent to a wireless video reception device or the transmission device to thereby limit usable communication channel candidates in number. The limited number of usable channel candidates are then used to perform intermittent signal reception, thereby shortening the searching time cycle of such intermittent reception within a standby period, thus lessening the startup time from the standby state between the wireless video transmission and reception devices and also reducing standby power thereof. | 05-05-2011 |
20110176057 | INFORMATION PROCESSING DEVICE AND METHOD FOR PROCESSING SIGNAL OF INFORMATION PROCESSING DEVICE - An information processing device is provided with plural HDMI connectors through which an audio signal is supplied to the other information processing device. The device allows selection of an audio signal supply destination. The audio signal supply is requested, and the audio signal is supplied to the specified information processing device in the requested arriving order. The information processing device of a specific type is determined as a priority device which is preferentially selected to receive the audio signal. If the information processing device of specific type is determined as the priority device, and supply of the audio signal therefrom is requested, the audio signal is supplied to the priority device by terminating the audio signal supply to the other information processing device. The audio signal may be supplied to plural supply destinations. | 07-21-2011 |
20110187818 | VIDEO PROCESSING APPARATUS AND VIDEO PROCESSING METHOD - Video processing apparatus and method including a process for switching a 2D program and a 3D video program. The method has the steps of, for example: inputting a 3D video signal and a 2D video signal; discriminating whether the video signal which is inputted is the 3D video signal or the 2D video signal; and converting a clock frequency of the video signal which is determined as a 2D video signal. | 08-04-2011 |
20110216242 | LINKAGE METHOD OF VIDEO APPARATUS, VIDEO APPARATUS AND VIDEO SYSTEM - A video apparatus includes a first and second video output devices and a video display device, the first video output device transmits information regarding a CC or closed caption display condition to the second output device through a CEC communication unit when switching over from the first output device to the second output device, in consequence, the second video output device can continue to display the CC or closed caption display condition, therefore, it is not required to set the CC or closed caption display once again by a user when switching over the video output device to another. | 09-08-2011 |
20120033044 | VIDEO DISPLAY SYSTEM, DISPLAY DEVICE AND SOURCE DEVICE - A video display system includes a source device for reproducing and outputting contents; and a display device for displaying contents which is output from the source device. Upon receiving a message for requesting display of a 3D video from the source device in a state of unreadiness to display the 3D video, the display device transmits a message for stopping reproduction of 3D contents to the source device. Upon receiving the message for stopping reproduction of 3D contents, the source device stops reproduction of the 3D contents. Upon completing preparations for displaying the 3D video, the display device transmits a message for reproducing the 3D contents to the source device. Upon receiving the message for reproducing the 3D contents, the source device reproduces and outputs the 3D contents. | 02-09-2012 |
20120033934 | VIDEO DISPLAYING SYSTEM AND REPRODUCING APPARATUS - When reproducing 3D contents, a video signal reproducing apparatus connected to a 3D display device of various 3D display schemes provides a guide display or a guide voice conformed to each of the 3D display schemes. Viewing requirements concerning the 3D display scheme of the 3D display device are transmitted to the video signal reproducing apparatus. When reproducing contents, the video signal reproducing apparatus is configured to conduct suitable guide display or voice guide on the basis of viewing requirements concerning the 3D display scheme. | 02-09-2012 |
20120033935 | VIDEO DISPLAYING SYSTEM AND REPRODUCING APPARATUS - When reproducing 3D contents, a video signal reproducing apparatus connected to a 3D display device of various 3D display schemes provides a guide display or a guide voice conformed to each of the 3D display schemes. Viewing requirements concerning the 3D display scheme of the 3D display device are transmitted to the video signal reproducing apparatus. When reproducing contents, the video signal reproducing apparatus is configured to conduct suitable guide display or voice guide on the basis of viewing requirements concerning the 3D display scheme. | 02-09-2012 |
20120057075 | DISPLAY SYSTEM, DISPLAY DEVICE, AND REPEATER - Also in a video system in which a device responding to a multiple screen display function and a non-responding device are mixedly present, a communication message for a collaboration of the device which performs a multiple screen display operation is realized without exerting an influence on operations of the non-responding device. A video device including two or more video input ports and capable of simultaneously receiving videos output from multiple video source devices connected to the video input ports is configured so as to perform a predetermined filtering operation or message conversion when transmitting to the other video input ports a communication message for video device control to be converted through the video input ports. | 03-08-2012 |
20120062792 | VIDEO PROCESSING DEVICE, DISPLAY DEVICE AND VIDEO PROCESSING METHOD - The present invention provides a method of notifying a reception side of a fact that a halftone process has been performed for data to be transmitted and a method of transmitting additional information to a reception side in image transferring among a plurality of devices. The present invention includes a step of performing image processes for video information and a step of outputting a signal containing the video information for which the image processes have been performed, and the signal to be output includes information related to the image processes. | 03-15-2012 |
20120081514 | REPRODUCING APPARATUS AND REPRODUCING METHOD - A reproducing apparatus for outputting content to an external display device, comprises a decode portion, which is configured to decode the content, and an output portion, which is configured to output the content, being decoded in the decode portion, to the external display device, wherein information relating to a limit of displaying a 3D vision is added to the content outputted from the output portion, where the content to be outputted therefrom is that, the 3D vision of which is to be limited. | 04-05-2012 |
20120147904 | VIDEO SIGNAL TRANSMISSION DEVICE, VIDEO SIGNAL TRANSMISSION AND RECEIVING SYSTEM, AND VIDEO PROCESSING SYSTEM, THAT TRANSMIT/RECEIVE OVER A CLOCK LINE - The present invention is intended to permit both real-time display of a picture represented by a non-compressed video signal on a television and display of a picture represented by a compressed video signal at any desired time by simultaneously transmitting the compressed video signal and non-compressed video signal via one interface. An STB packetizes a compressed video signal, and multiplexes the compressed video signal and a blanking signal combined with a non-compressed video signal. Thus, both the video signals are transmitted simultaneously. A picture represented by the non-compressed video signal is displayed on a television in real time. The compressed video signal is stored in a storage medium incorporated in the television, read at any user's desired time, and decoded so that a picture represented by the compressed video signal can be viewed at the user's desired time. | 06-14-2012 |
20120229706 | TRANSMISSION SYSTEM AND RELAY DEVICE - Provided is a system for supplying a power from a sink device to a source device. Not only the source device but also a cable or a repeater device to be connected thereto has compatibility in power supply. A physical address obtained from information of an EDID memory forms a base of CEC message exchange, but a physical address of the cable or repeater device is overlapped with the source device or unknown. The cable or a repeater device uses changes the type of a message while using the same physical address as the source device or use such a message having the physical address information of the source device is described in a parameter of the message using the unknown physical address. The message having a supply or reception current for each device described therein is exchanged with the sink device or the source device to adjust current reception. | 09-13-2012 |
20130091529 | DISPLAY DEVICE AND PLAY-BACK DEVICE - A display device includes a first interface, a second interface and a display circuit. The display device transmits a first connection confirmation signal to confirm connection, via the first interface to a playback device and receives a response signal in reply to the first connection confirmation signal, transmits a second connection confirmation signal to confirm connection, via the second interface to the playback device and receives a response signal in reply to the second connection confirmation signal, and makes a function to use the first and second interfaces between the display device and the playback device available if both response signals in reply to the first and second connection confirmation signals are received. | 04-11-2013 |
20130169882 | SYSTEM AND METHOD FOR TRANSMITTING A VIDEO SIGNAL FROM A TRANSMITTER TO A RECEIVER AND READING AND WRITING EDID - The present invention relates to system and method of reading and rewriting EDID in a video transmission system includes a transmitter transmitting a video signal and a receiver receiving the video signal that the transmitter transmitted which are connected to each other through digital interface, the method includes a reading step where the transmitter reads the EDID of the receiver through the digital interface; a first transmitting step where the transmitter transmit the video signal to the receiver on the basis of the EDID which the transmitter read; a second transmitting step where the receiver transmits a first message related to the EDID of the receiver; and a third transmitting step where the receiver transmits a second message related to the EDID of the receiver; wherein the transmitter, which received the first message from the receiver, does not read the EDID of the receiver until the second message is received. | 07-04-2013 |
20130266287 | REPRODUCTION DEVICE AND REPRODUCTION METHOD - When a reproduction device and a display device are separated, there is the risk that it will not be possible to appropriately overly menu images or the like on a 3D video signal in the reproduction device. This reproduction method, which outputs a video signal generated in a reproduction device to a display device, has: a step for reproducing a video signal; a step for generating image information to be superimposed on the reproduced video signal; a step for superimposing the generated image information on the reproduced video signal; a step for outputting the video signal to which the image information has been superimposed; a step for reading information relating to the display device from the display device; and a step for acquiring information relating to the state of the display device from the display device. The configuration is such that the method of superimposing the image information on the video signal is altered on the basis of the acquired information relating to the state of the display device and the read information relating to the display device. | 10-10-2013 |
20140002748 | IMAGE TRANSFER APPARATUS | 01-02-2014 |
20140205263 | VIDEO PROCESSING SYSTEM FOR DEMULTIPLEXING RECEIVED COMPRESSED AND NON-COMPRESSED VIDEO SIGNALS AND TRANSMITTING DEMULTIPLEXED SIGNALS - The present invention is intended to permit both real-time display of a picture represented by a non-compressed video signal on a television and display of a picture represented by a compressed video signal at any desired time by simultaneously transmitting the compressed video signal and non-compressed video signal via one interface. An STB packetizes a compressed video signal, and multiplexes the compressed video signal and a blanking signal combined with a non-compressed video signal. Thus, both the video signals are transmitted simultaneously. A picture represented by the non-compressed video signal is displayed on a television in real time. The compressed video signal is stored in a storage medium incorporated in the television, read at any user's desired time, and decoded so that a picture represented by the compressed video signal can be viewed at the user's desired time. | 07-24-2014 |
20140232939 | TRANSMISSION SYSTEM AND RELAY DEVICE - Provided is a system for supplying a power from a sink device to a source device. Not only the source device but also a cable or a repeater device to be connected thereto has compatibility in power supply. A physical address obtained from information of an EDID memory forms a base of CEC message exchange, but a physical address of the cable or repeater device is overlapped with the source device or unknown. The cable or a repeater device uses changes the type of a message while using the same physical address as the source device or use such a message having the physical address information of the source device is described in a parameter of the message using the unknown physical address. The message having a supply or reception current for each device described therein is exchanged with the sink device or the source device to adjust current reception. | 08-21-2014 |
20140293068 | IMAGE DISPLAY APPARATUS, MONITOR APPARATUS AND IMAGE PROCESSING APPARATUS - According to our invention, linked operation between a monitor apparatus for displaying images, and a set-top box for transmitting image signals to the monitor apparatus via a required interface, can be achieved properly, even if both units are constructed in casings separate from each other. The monitor apparatus uses a CEC line to transmit a CEC vendor command including at least a code associated with unit information, and the set-top box apparatus transmits the CEC vendor command including at least the code associated with the unit information. Upon receiving the vendor command from the set-top box apparatus, the monitor apparatus switches to the linked operation with the set-top box. | 10-02-2014 |
20140300822 | IMAGE TRANSFER APPARATUS - A video transmission system, in which a transmission device, a video signal source, and a video reception device are connected with each other via HDMI (High-Definition Multimedia Interface) which transmits uncompressed video signal; the transmission device verifying whether or not the video signal source and the video reception device have a function of transmitting/receiving a message and enabling the function of transmitting/receiving the message between the video signal source and the video reception device when both the video signal source and the video reception device have the function of transmitting/receiving the message; and the function of transmitting/receiving the message between the video signal source and the video reception device being terminated when HPD (Hot Plug Detect) signal indicated by the video reception device is set to āLā level. | 10-09-2014 |
20140363018 | Sound Processing Unit, Sound Processing System, Audio Output Unit And Display Device - Practical speaker connection is identified using a device having a sound channel of a 5.1 channel or 7.1 channel, and a device is provided that can easily reproduce the optimum multiple channels. Actual speaker arrangement can be identified by, for example, measuring the impedance of a terminal at the side of an audio amplifier. If incorrect connection is found, a warning is issued. This information is transmitted to a signal source with an EDID and a signal with the optimum a number of sound channel is sent. The EDID is also used for the connection with a display unit and the speaker connection with which the display unit is provided uniquely. For example, a sound through the 7.1 channel is easily reproduced using the speaker of the display unit in the channel of the front speaker. | 12-11-2014 |