Abstract: A semiconductor laser outputs a laser light from an output facet of a waveguide having an index waveguide structure, via a lens system. The waveguide includes, in order from a rear facet opposite to the output facet, a first narrow portion, a wide portion that is wider than the first narrow portion, a second narrow portion narrower than the wide portion, a first tapered portion formed between the first narrow portion and the wide portion, which expands toward the wide portion, and a second tapered portion formed between the wide portion and the second narrow portion, which narrows toward the second narrow portion. Each of the first narrow portion, the wide portion, and the second narrow portion has a uniform width.

Abstract: An object is to provide a peel tester that continuously detects the characteristics of an adhesive tape from the moment an impact is applied to an adherend until the adherend is peeled, and a new method for evaluating the impact peel characteristics of an adhesive tape, which enables quantitative evaluation for the impact peel characteristics by using the test result obtained by the peel tester. Provided is a peel tester 1 with a main body 2, to which an adherend I is to be adhered via an adhesive tape III, for performing a peel test by an impact applied to the adherend I, which includes: a load detection device 6 that detects change in load applied to the adhesive tape I until the adherend I is peeled off from the main body 2; and a displacement detection device 7 that detects change in moving distance of the adherend I until the adherend I is peeled off from the main body 2.

Abstract: When a conventional audio video system is used, it is necessary to identify an input source of audio video information. For this reason, complicated operations and slow operation times have been a problem. A control apparatus includes: an instruction receiving unit for receiving an instruction to be provided to an audio video supplying apparatus which is an input source of audio video information currently outputted from an output apparatus that outputs the audio video information; a determination unit for determining one of the audio video supplying apparatuses to be the input source of the audio video information currently being outputted from the output apparatus; and a control information sending unit for outputting control information to the audio video supplying apparatus determined by the determination unit, the control information corresponding to the instruction received by the instruction receiving unit and being used for controlling the audio video supplying apparatus.

Abstract: A broadcast receiving device capable of easily setting area information. A control unit of a DVR transmits an acquisition request for area information to a TV. When the control unit receives a response to the acquisition request from the TV, the control unit extracts area information from the received response and performs a channel presetting using the extracted area information. A control unit of the TV has area information stored therein. When the control unit receives an acquisition request for area information from the DVR, the control unit transmits, as a response to the request, the stored area information to the DVR.

Abstract: In the wireless HDMI converter, appropriate audio data input switching is performed, and, when an instruction is received, an audio data extraction unit extracts audio data from video and audio data received by an HDMI input interface from an STB, and an optical audio output interface outputs the extracted audio data to a home theater, thereby avoiding failure of wireless communication by a wireless interface or deterioration of the quality of such wireless communication.

Abstract: It is desirable to provide a semiconductor optical amplifier from which it becomes able to obtain a higher output power. A semiconductor optical amplifier in comprises an active wave guiding layer which comprises a passive core region that is formed of a semiconductor, and active cladding regions that are located at both sides of the passive core region and each of that is comprised of an active layer which is formed of a semiconductor and which has an index of refraction to be lower than that of the passive core region, wherein a light is wave guided with being amplified in the active wave guiding layer. Moreover, it is desirable for the active wave guiding layer to be formed of a compound semiconductor, and to be formed by integrating the passive core region and the active cladding regions to be monolithic on to a substrate that is formed of a compound semiconductor by making use of a process of a butt joint growth.

Abstract: A semiconductor device of the invention is formed so that n-type InP current blocking layers enter the inside of p-type InP cladding layers, i.e., the n-type current blocking layers ride over the upper part of the p-type InP cladding layers, so that a distance between the n-type InP current block layers composing a current blocking region is narrower than a width of the p-type cladding layers contacting with the n-type InP current blocking layers. Thereby, the semiconductor device whose leak current in the current blocking region may be reduced which permits high-output and high-temperature operations may be readily fabricated.

Abstract: A wireless transmission method includes: receiving a location specification message indicating a location of a source device (S702 and S703); and selecting a connection mode applied between first and second wireless transmission devices, on the basis of the location of the source device indicated by the location specification message, and establishing a connection according to the selected connection mode (S704 to S706). When the source device is located on a side of the second wireless transmission device (Yes in S704), a first wireless connection mode is selected in the selecting so that the video data is wirelessly transmitted in a direction from the second wireless transmission device to the first wireless transmission device (S706).

Abstract: When a conventional audio video system is used, it is necessary to identify an input source of audio video information. For this reason, complicated operations and slow operation times have been a problem.

Abstract: An intake sound generation apparatus for an internal combustion engine, including an introduction duct connected to an intake passage of an intake system of the engine, a vibration member including a diaphragm portion which is vibrated by intake pulsation in the intake system, and a bellows portion configured to promote vibration of the diaphragm portion, the vibration member being so disposed as to cover one end of the introduction duct, and a resonance duct having one end connected to the introduction duct through the vibration member and the other end opened to an outside of the intake sound generation apparatus, the resonance duct acting to increase and emit a sound pressure of intake sound produced by vibration of the vibration member. A central axis of at least one of the introduction duct and the resonance duct is located offset relative to a central axis of the vibration member.

Abstract: In one aspect, when a user directs a remote controller (13) toward a television set (11), causing the remote controller (13) and the television set (11) to enter the wireless communication region of each other, the remote controller (13) and the television set (11) establish a wireless link to each other. When the user directs the remote controller (13) toward an air conditioner (12), causing the remote controller (13) and the air conditioner (12) to enter the wireless communication region of each other, the remote controller (13) and the air conditioner (12) establish a wireless link to each other. The remote controller (13) and the television set (11) are out of the wireless communication region of each other at this point, and the wireless link between the two is thus disconnected.

Abstract: A network system according to an implementation of the present invention involves: determining whether or not a matching address is found by comparing (i) an apparatus address, of an apparatus connected to an HDMI network, which is obtained via the HDMI network with (ii) an apparatus address, of an apparatus connected to another network, which is obtained via the other network (S44). Here, the matching address represents a match between the apparatuses addresses. When determining that the matching address is found, the implementation of the present invention involves determining that the terminal apparatus having the matching address is connected to a control apparatus via both of the HDMI network and the other network (S46).

Abstract: To easily ensure that appropriate recognition information is used. A remote control system (1) includes a DVR (13) and a remote control (11) that controls the DVR (13) via a wireless communication path. The remote control (11) which is one apparatus out of the DVR (13) and the remote control (11) obtains, by a wireless reception unit (114), recognition information used by the apparatus to uniquely recognize the other apparatus, via another communication path (a communication path through a TV (12)) different from the wireless communication path connecting the apparatus and the other apparatus. When a connected apparatus recognized via the wireless communication path is identified by the obtained recognition information, the remote control (11) sets, by a control circuit (115), the connected apparatus as the DVR (13) which is the other apparatus to enable communication with the connected apparatus.

Abstract: To provide an audio-video data synchronization method whereby an increase in the amount of control message transmission can be suppressed and the video output can be prevented from being interrupted.

Abstract: The present invention provides a reproduction apparatus capable of automatically switching an input of a television to an output from a broadcast receiver such as an STB. A television, upon receiving a notification command notifying that output of video or audio is to start, switches its input to an output from an apparatus which has sent the notification command. An STB, upon receiving an instruction command instructing that output of video or audio should be started, sends the notification command to the television. A DVD recorder includes: a decoder that reproduces video or audio recorded in a DVD-RAM disc; a data output I/F that outputs the reproduced video or audio to the television; and a command sending and receiving I/F that sends the instruction command to the STB when the output of the reproduced video or audio ends.

Abstract: A digital broadcast receiving apparatus which enables simple programming for receiving a digital television broadcast and/or a radio broadcast. The digital broadcast receiving apparatus includes: a broadcast receiving unit receiving a digital broadcast; an extraction unit extracting a service description table from the received digital broadcast; an identification unit identifying, from the extracted service description table, transport stream identification information, network identification information, and service identification information, as stream identification information; and a transmission unit transmitting, to a recording apparatus, the identified stream identification information and a recording command.

Abstract: First shaped item with shaft part is produced by forward extrusion forming of work, and further, upset forming thereof is carried out to thereby obtain second shaped item with large-diameter part. Subsequently, backward extrusion forming of the second shaped item is carried out to thereby obtain third shaped item having not only cup part provided with ball rolling grooves but also circular diameter expansion portion provided at the mouth area of the inside wall of the cup part along the circumferential direction in such a fashion that the diameter is gradually expanded from the bottom side toward the opening side. Outer ring member for constant-velocity joint is obtained by further subjecting the third shaped item to low-temperature annealing treatment, shot blast treatment and lubricating chemical coating treatment, and thereafter to ironing forming.

Abstract: In the wireless HDMI converter, appropriate audio data input switching is performed, and, when an instruction is received, an audio data extraction unit extracts audio data from video and audio data received by an HDMI input interface from an STB, and an optical audio output interface outputs the extracted audio data to a home theater, thereby avoiding failure of wireless communication by a wireless interface or deterioration of the quality of such wireless communication.

Abstract: A wireless transmission method includes: receiving a location specification message indicating a location of a source device (S702 and S703); and selecting a connection mode applied between first and second wireless transmission devices, on the basis of the location of the source device indicated by the location specification message, and establishing a connection according to the selected connection mode (S704 to S706). When the source device is located on a side of the second wireless transmission device (Yes in S704), a first wireless connection mode is selected in the selecting so that the video data is wirelessly transmitted in a direction from the second wireless transmission device to the first wireless transmission device (S706).

Abstract: A BD player (13) that is a reproduction apparatus includes: a control command processing unit (13b) that is a selecting unit which obtains a priority indicating a priority order of each of a TV (11) and a projector (12) that are a plurality of display apparatuses, to display content, from a corresponding one of the TV (11) and the projector (12) via a communication network, and selects a display apparatus which holds a highest priority from among the TV (11) and the projector (12); and a content transmitting unit (13c) which transmits the content to the display apparatus selected by the control command processing unit (13b).