摘要:
A semiconductor device includes a base layer of a first conductivity type, a barrier layer of a first conductivity type formed on the base layer, a trench formed from the surface of the barrier layer to such a depth as to reach a region in the vicinity of an interface between the barrier layer and the base layer, a gate electrode formed in the trench via a gate insulating film, a contact layer of a second conductivity type selectively formed in a surface portion of the barrier layer, a source layer of the first conductivity type selectively formed in the surface portion of the barrier layer so as to contact the contact layer and a side wall of the gate insulating film in the trench, and a first main electrode formed so as to contact the contact layer and the source layer.
摘要:
Copying, dubbing or reproducing copyrighted digital data can be inhibited or restricted to properly protect a copyright. AV data recorded on a pre-recorded tape is output from a reproducing unit of a first digital VCR with protective information indicating whether the copy of the AV data is inhibited or not. The protective information is input with the A/V data to a second digital VCR. Copy permission information of a blank tape loaded in the second digital VCR is discriminated and the second digital VCR records the AV data supplied from the first digital VCR based on the protective information and the copy permission information.
摘要:
According to an embodiment of the invention, there is provided a semiconductor device comprising: a semiconductor element having a first main electrode, a second main electrode and a control electrode, a current flowing between the first and second main electrodes being controlled by a control signal which is input between the control electrode and the second main electrode; and a capacitor formed by providing an insulating layer between the second main electrode and the control electrode of the semiconductor element.
摘要:
According to an embodiment of the invention, there is provided a semiconductor device comprising: a semiconductor element having a first main electrode, a second main electrode and a control electrode, a current flowing between the first and second main electrodes being controlled by a control signal which is input between the control electrode and the second main electrode; and a capacitor formed by providing an insulating layer between the second main electrode and the control electrode of the semiconductor element.
摘要:
A video apparatus is disclosed. The video apparatus has signal control means for outputting an image signal in a plurality of formats, interface means for connecting the video apparatus to a computer, and interface control means for controlling so as to transmit the image signal to the computer by using the interface means. In the case where the video apparatus has been connected to the computer through the interface means, when the format of the image signal is switched, the interface control means controls the interface means in such a manner that the connection to the computer is disconnected without changing a physical connecting state. After the elapse of a predetermined period, the video apparatus is connected to the computer again without changing the physical connecting state.
摘要:
Disclosed is an insulated gate semiconductor device comprising: a first region having a gate electrode region and a first insulating film region surrounding the gate electrode region; a semiconductor region which includes a channel forming region and is disposed to oppose the gate electrode region with the first insulating film region between them; and a second region which has a conductor region buried in a semiconductor region not including the channel forming region disposed to oppose the gate electrode region with the first insulating film region between them, and has a second insulating film region which separates the conductor region from the semiconductor region.
摘要:
A snubber circuit has a voltage detection circuit which detects that a voltage between first and second terminals exceeds a predetermined voltage, a protection circuit which performs control to prevent an overvoltage between the first and second terminals when the voltage detection circuit detects that the voltage between the first and second terminals exceeds the predetermined voltage, and a voltage control circuit which bypasses a portion of a main current flowing between the first and second terminals to the protection circuit when the voltage detection circuit detects that the voltage between the first and second terminals exceeds the predetermined voltage.
摘要:
Copying, dubbing or reproducing copyrighted digital data can be inhibited or restricted to properly protect a copyright. AV data recorded on a pre-recorded tape is output from a reproducing unit of a first digital VCR with protective information indicating whether the copy of the AV data is inhibited or not. The protective information is input with the A/V data to a second digital VCR. Copy permission information of a blank tape loaded in the second digital VCR is discriminated and the second digital VCR records the AV data supplied from the first digital VCR based on the protective information and the copy permission information.
摘要:
To provide a thermal printer capable of easily improving a recording quality, a plurality of recording units, arranged along a carrying path of a recording medium, are respectively provided with a recording head, a platen which opposes the recording head with the carrying path interposed therebetween and is brought into contact with and separated from the recording head, a carrying unit including a carrying roller arranged on the downstream side of the recording head, and a friction unit including a friction roller arranged on the downstream side of the carrying unit in order to prevent the disturbance generated on the downstream side from propagating upstream via the recording medium, between the respective recording units.
摘要:
A housing can be of simple structure because the first wall portion, the second wall portion, and a side portion are integrally formed. The housing is brought into contact with the resin-formed part of a coil at an end opposite to the side portion of the second wall portion. This prevents the relative turn in the peripheral direction between the coil and the housing and the movement to the side portion of the coil. On this account, the positional relationship between the coil and the housing can be prevented from becoming incorrect and the winding or the wiring part of the coil through which current flows can be prevented from being brought into contact with the housing of a conducting body. The positional relationship between the coil and the housing can be determined with precision without causing the complex structure of the coil and the housing.