摘要:
A plane diffraction grating based on surface normal rotation according to the present invention is designed so that the profile of the grooves at a radial area is determined depending on a rotational position of the area about a rotational center defined as a foot of the rotational axis on the surface of the plane diffraction grating. An optical system such as a spectrometer or a monochromator according to the present invention uses such a plane diffraction grating, and requires a special arrangement. The optical system includes: a plane diffraction grating as described above; a mechanism for rotating the plane diffraction grating about the rotational axis; an incidence optical system for casting a converging beam of light on a point of the surface of the plane diffraction grating, where the point is set apart from the rotational center. As the diffraction grating is rotated about the rotational center, the point on which the incident converging beam of light is cast rotates about the rotation center, where the diffracting condition is optimized anywhere around the rotational center or for any scanning wavelength. The surface of the plane diffraction grating can be covered with a multiple-layer coating to improve diffraction efficiency. When such a multiple-layer is coated, the unit thickness of the multiple-layer coating at an area is also determined depending on the rotational position of the area about the rotational center.
摘要:
A brake band comprises a strap and a lining bonded on an inner peripheral surface of the strap. The lining is provided in a surface thereof with at least one oil groove formed under compression to a predetermined depth.
摘要:
A digital line transmission unit can carry out switching between speech codecs during the same call to achieve balance between making effective use of a line and a high sound quality without bringing about a feeling of discomfort in a user by the switching. It includes in an encoder a first speech codec 7 with a high sound quality and a high bit rate, a second speech codec 8 with a reasonable sound quality but a low bit rate. It carries out switching between these speech codecs in response to the control information an operation monitoring controller 4 obtains by making a decision as to the traffic volume of the bearer line 111. The switching between the speech codecs is made during a speech pause a speech burst detector 31 in a signal detector 3 detects in an input speech signal.
摘要:
A conical diffraction grazing incidence spectroscope for performing wavelength scanning by rotating a diffraction grating about an axis set parallel to groves in a grazing surface of the grating.
摘要:
The present invention has an object to provide an information processing apparatus and authentication program storage medium which can prevent unauthorized use reliably at low costs. The information processing apparatus has a connection section to which a device is removably connected and performs information processing using the device connected to the connection section. It is equipped with a condition setting section which establishes insertion/removal conditions for a device inserted into the connection section; and an authentication section which determines upon start-up of the information processing apparatus whether insertion/removal of a device satisfies the insertion/removal conditions established by the condition setting sections, and permits the information processing apparatus to perform information processing if it is determined that the insertion/removal satisfies the established insertion/removal conditions.
摘要:
The present invention has an object to provide an information processing apparatus and authentication program storage medium which can prevent unauthorized use reliably at low costs. The information processing apparatus has a connection section to which a device is removably connected and performs information processing using the device connected to the connection section. It is equipped with a condition setting section which establishes insertion/removal conditions for a device inserted into the connection section; and an authentication section which determines upon start-up of the information processing apparatus whether insertion/removal of a device satisfies the insertion/removal conditions established by the condition setting section, and permits the information processing apparatus to perform information processing if it is determined that the insertion/removal satisfies the established insertion/removal conditions.
摘要:
A brake band assembly for use in a transmission is provided with a brake drum and a brake band arranged surrounding the brake drum and having a strap and a lining bonded on an inner surface of the strap. The brake band assembly includes an antitilt device for the brake band. The antitilt device is arranged on the brake band such that, when the brake band assembly is out of operation, the lining of the brake band is kept out of contact with the brake drum.
摘要:
The present invention provides a brake band in which brackets are joined to ends of a curved strap and a friction material is provided on an inner surface of the strap and wherein stress reducing means for reducing axial stress are provided on the strap.
摘要:
A communication apparatus includes a multiplexing transmission unit (1) for multiplexing and transmitting communication data, an operation monitoring control terminal (3) for monitoring the multiplexing transmission unit (1), and an IP terminal (2) connected with the multiplexing transmission unit (1) by way of a physical interface between the multiplexing transmission unit (1) and the operation monitoring control terminal (3) which the IP terminal shares with the operation monitoring control terminal, the IP terminal converting a signal inputted to the communication apparatus from outside into IP packets, and furnishing them to the multiplexing transmission unit (1). The multiplexing transmission unit (1) multiplexes the IP packets furnished thereto from the IP terminal (2) and communication data, and then transmits them to a station which is disposed opposite to the communication apparatus.
摘要:
Recording peripheral image information by an electronic apparatus only when illegal use of the apparatus is determined to minimize resources and simplifying recording. The electronic apparatus includes a first memory storing a parameter representing at least one condition for the illegal use of the apparatus and a control unit for storing in a second memory image information by a photographing device that photographed a user of the apparatus after the conditions are satisfied. The control unit controls the output of the image information stored in the second memory through an output direction and directs a BIOS setup program to read out the parameter in the first memory and record the image information into the second memory and directs an operating system or an application program running on the apparatus to set and alter the parameter in the first memory via an interface in the BIOS program.