Abstract:
PROBLEM TO BE SOLVED: To perform communications with an external device favorably.SOLUTION: There is provided a reception device comprising: a video signal reception part configured to receive a video signal from an external device via a transmission path on the basis of a differential signal in a plurality of channels; a communication part configured to perform communications with the external device via the communication path formed of a predetermined line of the transmission path; and a function information reception part configured to receive function information transmitted from the external device and indicating that a communication part which performs communications via the communication path formed of the predetermined line is provided. The communication path is formed of a pair of differential transmission paths, and at least one of the pair of differential transmission paths is equipped with a function of notifying the external device of a connection state of the reception device on the basis of a direct-current bias potential.
Abstract:
PROBLEM TO BE SOLVED: To achieve transmission of high-definition video signals, or the like, requiring a large transmission band.SOLUTION: A video signal is subjected to frame division and a plurality of divided video signals are produced and transmitted respectively to an external apparatus via an independent transmission line. Transmission of high-definition video signals requiring a large transmission band exceeding that of one transmission line can be achieved well. First information indicating the existence of other divided video signals to be connected, and second information for synchronizing with other divided video signals to be connected are added to the divided video signals being transmitted from a data transmission section for every frame. In the external apparatus, reception video signals can be obtained easily by frame sequence of a plurality of divided video signals.
Abstract:
PROBLEM TO BE SOLVED: To perform transfer processing using a network address such as an IP address through simple device selection and to also reduce power consumption. SOLUTION: A transfer device is applied to a transfer system comprising a first network and a second network. The first network transmits a content and/or control data using a first address assigned by a key device 100 in the network. The second network transmits the content and/or control data using a second address assigned by a device 10 including a router function. An address table is then provided which stores correspondence between the first address and the second address regarding devices 100-400 connected to both the first network and the second network. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To efficiently use a frame to store data while maintaining compatibility of data transmission by an existing frame. SOLUTION: A transmission device 10 includes a transmission part 12. In transmitting a digital signal by storing it in a frame having a data storage bit string and an attribute bit, the transmission part 12 stores a digital signal of main data in one of bit string of data storage bit strings, stores a digital signal of secondary data in a bit other than the one of the data storage bit strings in which the main data is stored, and stores the information indicating the number of bits of the one bit string in which the main data is stored, and the information indicating an attribute of the secondary data, in an attribute bit string composed of attribute bits of a plurality of frames. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To flexibly decode video/audio signals, and to secure synchronization (lip-sync) between the reproduced video and audio in a system using an interface, such as an HDMI(R), which is standardized on one-way transmission. SOLUTION: A transport signal transmitted from a television receiver 720 via a signal line 708 is separated by a transport signal process section 713 and decoded by a video signal decode section 714 and an audio signal decode section 715. The decoded video signal is transmitted to the television receiver 720 via a signal line 701. A video process time of the television receiver 720 is acquired by a delay information acquisition section 716 via a signal line 703. An audio signal delay section 717 delays the audio signal decoded by the audio signal decode section 715 according to the video process time acquired by the delay information acquisition section 716 and outputs it to a speaker 750. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To perform two-way communication at a high speed while keeping interchangeability. SOLUTION: When an HDMI(R) source 71 and an HDMI(R) sink 72 perform two-way IP communication using a CEC line 84 and a signal line 141, a switching control part 121 controls a switch 133 so as to select partial signals constituting difference signals from a conversion part 131 by the switch 133 when transmitting data and to select partial signals constituting difference signals from a receiver 82 by the switch 133 when transmitting the data. When performing the two-way communication using only the CEC line 84, the switching control part 121 controls the switch 133 so as to select CEC signals from the HDMI(R) source 71 or the receiver 82 by the switch 133. This invention is applicable to the HDMI(R) for instance. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To use at need by generating information necessary for supplying a removal part in signal conversion processing from a signal after conversion processing signal conversion to being independently managed separately from the signal after the conversion. SOLUTION: An additional signal generation device generates the signal of a high region part removed in signal conversion processing of the signal after the conversion as an additional signal and generates profile information comprising inherent information in the additional signal. The device prepares a management table relating to the signal after the conversion, the corresponding additional signal and the profile information by a management table preparation processing part 223, and records each of the additional signal, the profile information and the management table through a corresponding additional signal recording part, a profile information recording part and a management table recording part. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a voice signal delay device in which a comb filter effect does not arise. SOLUTION: A phase shift unit 12 shifts a phase for each frequency of an input voice signal S0, replacing a delay device which is conventionally used. A mixer 13 mixes the input voice signal S0 with a phase shift output signal S1 of the phase shift device 12. Thereby, the comb filter effect which arises in conventional delay sound mixing, is removed. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a transmission signal generating apparatus in which no temporal deviation occurs between a video signal and an audio signal, when a multiplexed signal is demodulated in a transmission signal receiving apparatus without manually adjusting the deviation of decoding time information, each time an ADC or an encoder is changed in the transmission signal generating apparatus. SOLUTION: In a transmission signal generating apparatus 1, a changeover switch 3 and a changeover switch 7 are changed over and an audio output section 12 and a video output section 15 output a predetermined audio signal and a video signal at a predetermined timing from a multiplexer 10, so that analog audio and analog video signals having the same change point are inputted to a speaker 13, a microphone 14, a light-emitting section 16 and a camera 17. These analog audio and analog video signals, having the same change point, are used to automatically adjust the deviation of decoding time information. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To achieve joining of 1-bit signals produced respectively at different sampling frequencies in an integer multiple relation to each other without causing noise. SOLUTION: Upon the receipt of a switching request signal 302, a controller 13 controls switching of a changeover switch 15 to provide an output of a switching output signal 305 resulting from smoothly selecting a 64fs rate reproduction signal 300, a 64fs cross fade signal 310 and then a 64fs mute pattern signal 308. When the 64fs mute pattern signal 308 is outputted, the controller 13 generates a switching signal 306 in a properly controlled timing to allow a mute pattern generator 12 to switch the 64fs mute pattern signal 308 into a 128fs mute pattern signal 309. A temporal average of a double integral signal with a minimum repetitive pattern is equal between the mute pattern signals of the two systems. COPYRIGHT: (C)2006,JPO&NCIPI