摘要:
A signal switching device including an interface having a video signal communicating unit, a DDC and an HPD, controlling connected device, or being controlled by connected device. A switcher (2) includes a switch (30) selecting video signal input, a DDC (26c) reading information from output destination device, a microcomputer (33) reading information indicating a physical address of switcher (2) and a status of the output destination device through DDC (26c), and a DDC (22a) and a DDC (22b) outputting information to a plurality of input source devices. The microcomputer (33) stores the physical address of the switcher (2) and above-mentioned information into an EDID memory (32) and reads the above-mentioned information out of the EDID memory (32) and outputs through the DDC (22a) and the DDC (22b).
摘要:
A television set includes: an internal speaker which outputs sound; a memory which holds information; a remote controller receiver which receives an instruction from the outside of the television set; a microcomputer which causes, based on a mode specifying instruction for specifying a sound output mode received by the remote controller receiver, the memory to hold any one of (a) information that indicates a first sound output mode in which sound is outputted from the internal speaker and (b) information that indicates a second sound output mode in which sound is outputted from an external speaker that is a speaker outside the television set; and an HDMI/CEC communication unit which outputs the information that indicates the sound output mode and that is held by the memory, to an amplifier which controls to operate or not operate the speaker outside the television set.
摘要:
The present invention provides an output control apparatus capable of appropriately switching screens depending on the situation. A television includes: a tuner that receives a television broadcast; a data input I/F that receives video or audio from a DVD recorder; a command input I/F that receives a command from the DVD recorder; a user input unit that receives an instruction from a user; a switch capable of selecting the tuner or the data input I/F; an output processing unit that controls output of video or audio from the switch; and a control unit that switches the switch to the tuner in the case where the switch is selecting the data input I/F when a first command is inputted from the command input I/F and does not switch the switch in the case where the switch is not selecting the data input I/F.
摘要:
A signal switching device including an interface having a video signal communicating unit, a DDC and an HPD, controlling connected device, or being controlled by connected device. A switcher (2) includes a switch (30) for selecting video signal input, a DDC (26c) for reading information from output destination device, a microcomputer (33) for reading information indicating a physical address of switcher (2) and a status of the output destination device through DDC (26c), and a DDC (22a) and a DDC (22b) for outputting information to a plurality of input source devices. The microcomputer (33) stores the physical address of the switcher (2) and above-mentioned information into an EDID memory (32) and reads the above-mentioned information out of the EDID memory (32) and outputs through the DDC (22a) and the DDC (22b).
摘要:
It is objected to simplify a procedure concerning bandwidth acquisition. Bandwidth acquiring means 809 of a second transmitting apparatus 814 acquires a bandwidth which was used by a first transmitting apparatus 806 by using a propagation delay identifier 804 read from first transmitting apparatus 806 and a maximum transmission data size 805 after stopping transmission of first transmitting apparatus 806. Each apparatus is composed so that transmission is started using this bandwidth and because returning and re-acquisition are not accompanied when the transmission is switched, necessary procedure can be simplified. Further, it is possible to effectively use the bandwidth by using a propagation delay identifier.
摘要:
An output control apparatus capable of appropriately switching screens depending on a current situation, and a reproduction apparatus and a television performing the same. The television includes a tuner receiving a television broadcast, a data input I/F receiving video or audio from a DVD recorder, and a command input I/F receiving a command from the DVD recorder. Further, the television includes a user input unit receiving an instruction from a user, a switch selecting the tuner or the data input I/F, an output processing unit controlling an output of video or audio from the switch, and a control unit (i) switching the switch to the tuner when the switch selects the data input I/F when a first command is inputted from the command input I/F and (ii) not switching the switch when the switch does not select the data input I/F.
摘要:
A sound reproduction apparatus of the present application stores the physical address value of a source device that is the device to be switched to, and references the physical address values that are parameters of CEC commands issued by other devices. In the case where the referenced physical address value matches the stored physical address value of the source device, the sound reproduction apparatus automatically switches the sound input to the sound input for the device to be switched to. In this manner, the sound reproduction apparatus can reproduce sound based on a multichannel sound signal output from the source device. Also, in the case where a user sets the source device to a viewing state through a sink device, the sound reproduction apparatus automatically switches the sound input to the sound input from the source device.
摘要:
Detecting an input source of a signal of a device connected to a bus and determining whether the signal is converted, extracted, multiplexed, or processed. Efficiently controlling the connection of each unit connected on the bus. Issuing a command for detecting the output plug or source plug as the signal source. The unit or subunit receiving this command shows the signal source. Obtaining information showing whether a subunit is present in the unit or not.
摘要:
A communication apparatus (100) of the present invention establishes a one-way data connection and a connection to a network in which a message is transferred in two ways, and includes: a one-way data connection status detecting unit (101) which detects a connection validating request showing a communication apparatus on a data reception side that data transmission, utilizing the one-way data connection, is possible and a connection invalidating request showing that the data transmission is impossible, both of which are outputted from the communication apparatus on the data reception side; an apparatus address obtaining unit (102) which obtains an apparatus address with a message via the network when a change from the connection invalidating request to the connection validating request is detected; an address holding unit (104) which holds the apparatus address; and a message transmission continuing unit (105) which responds to the message received via the network based on the apparatus address held by the address holding unit (104) regardless of whether or not the connection invalidating request is detected.
摘要:
A data recording/reproducing method wherein encrypted digital data obtained by subjecting digital data to first encrypting by using a contents key and encrypted contents key obtained by subjecting the contents key to second encrypting are recorded on a recording medium, the encrypted digital data and the encrypted contents key, having been recorded, are reproduced, and the encrypted digital data is decrypted by using the contents key obtained by decrypting the encrypted contents key, thereby to obtain the digital data.