Abstract: A multi-layered endless belt having an arbitrary layer thickness by the thickness of the film and the winding number, a medium conveying belt using the same, and a method and apparatus by which these can be stably produced without various residues in the production process and can be produced with a high general-purpose properties and at a low cost. There are provided a multi-layered endless belt made by winding and heat-welding a polymer material film and a production method thereof, and further a production method of medium conveying belts of various forms fundamentally having a construction in which an electrode pattern and a protective film are laminated thereon, and a novel production method and molding apparatus for molding the multi-layered endless belt by heat-pressing a wound tubular body.

Abstract: An adaptive digital filter (10) is adapted to generate a pseudo echo Se which is produced by imitating a noise, using part of receiving signals Si and to output it. An echo produced through an echo path (15) is mixed, as an echo noise, with a sending signal So and this sending signal is attenuated by a level attenuator (6). The level attenuator (6), in order to match the amplitude level of the echo noise of the sending signal So to that of the pseudo echo, attenuates the sending signal So and feeds it to a subtracter (7). The subtracter (7) eliminates echo noises by subtracting the pseudo echo Se from the sending signal So. Even if the echo path is in the state of amplified system, the complete elimination of the echo can be achieved accordingly.

Abstract: An echo cancellor having a main tap coefficient holding section to renew a tap coefficient used to establish a pseudo transmission characteristic of an echo path and a sub tap coefficient holding section to make a copy of a tap coefficient held by the main tap coefficient holding section and to hold it. The copying is made each time an echo suppressing rate is increased. Accordingly, a tap coefficient having a high echo suppressing rate is held by the sub tap coefficient holding section. In this state, if an ambient noise such as an alarm of whistle of a vehicle is mixed, renewal operation of the main tap coefficient holding section is halted and a tap coefficient held by the sub tap coefficient holding section is used. Even in the case of a divergence of the main tap coefficient, normal operation can be maintained by the tap coefficient held by the sub tap coefficient holding section accordingly.

Abstract: A multi-layered endless belt having an arbitrary layer thickness by the thickness of the film and the winding number, a medium conveying belt using the same, and a method and apparatus by which these can be stably produced without various residues in the production process and can be produced with a high general-purpose properties and at a low cost. There are provided a multi-layered endless belt made by winding and heat-welding a polymer material film and a production method thereof, and further a production method of medium conveying belts of various forms fundamentally having a construction in which an electrode pattern and a protective film are laminated thereon, and a novel production method and molding apparatus for molding the multi-layered endless belt by heat-pressing a wound tubular body.

Abstract: A control signal generating circuit for generating control signals, based on a first clock signal, a second clock signal and a mode setting signal, and a plurality of scanpath circuits. Operation of each of the scanpath circuits is controlled according to the generated control signals. The control signal generating circuit and scanpath circuits are provided in a semiconductor integrated circuit having reduced size.

Abstract: A heated roller for use in a fixing device has a heating portion and hollow shaft portions integrally molded from the same material. Conducting terminals capable of elastically expanding and contracting in the radial direction are closely fitted into the hollow shaft portions at both ends of the molded member. This ensures power supply from the conducting terminals, which are metallic parts, to the ceramic heating portion.

Abstract: A memory circuit includes an input selector for receiving input data serially at an interval of a period T and outputting the input data and an address counter for generating first address data sequentially at an interval of a having period 2T and second address data sequentially at an interval having period 2T. The second address data is delayed a period T from the first address data. The memory circuit of the present invention further includes two memory blocks coupled to the input selector and address counter. One memory block stores even numbered input data in response to the first address data and outputs them at the interval of the period 2T. The other memory block stores odd numbered input data in response to the second address data and outputs them at the interval of the period 2T.

Abstract: A method of producing a magnet roll in which a magnetic property comparable to that obtained by an injection molding can be obtained in spite of an extrusion molding. According to a first embodiment, the yoke width of the magnetic-field extrusion die is varied along an extrusion direction. According to a second embodiment, a pipe filled with resin bonded magnet material is used as a shaft. According to a third embodiment, a shaft having a groove which is filled with magnet is used. According to a fourth embodiment, a shaft provided with surface magnetic charge is used. According to a fifth embodiment, a magnetized region of a shaft is set to be shorter than the length of a main magnet. According to a sixth embodiment, an extruded matter is moved while stored in a sizing metal mold having a magnetic circuit structure.

Abstract: A heat roller having a resin layer for adhesion provided on the outer surface of a roller body, containing a silicone resin material of good thermal conductivity which is in the form of an oil in a temperature range of -50 to 150 degrees Celsius and is thermosettable above 150 degrees Celsius, which is interposed between the roller body and the resin layer by coating.

Abstract: 32-bit image data transferred through an image data bus is input to a thinning out circuit through a bus I/F, and is thinned out by the thinning out circuit to have an active data width of 24 bits. The 32-bit data including the active data width of 24 bits obtained by the thinning out operation is supplied to a line buffer block. The line buffer block has a data width equal to or larger than the maximum bit width of the image data bus. The 32-bit data supplied to the line buffer block is directly written in the line buffer block. The data written in the line buffer block is repetitively shifted by a shift register block according to the active data width of 24 bits.

Abstract: The invention relates to a technique which enables good electric contact to be surely made between a heat roller and conducting terminals serving as feed means. The heat roller comprises a heating portion and shaft portions which are integrally molded from the same material in the form of a molded member at least both end portions of which are hollow. The conducting terminals are capable of elastically expanding and contracting in the radial direction and are closely fitted into the hollow portions at both ends of the molded member.

Abstract: An electrophotographic development process is disclosed, in which a visible toner image is fixed after it is transferred onto transfer members, the visible toner image being formed by a development device equipped with a photosensitive substance for forming a latent image and a visible image, a magnetic field source device, arranged in the vicinity of the photosensitive substance, having a movable member for conveying a developer on the surface and forming magnetic brush, a developement container supporting the magnetic field source device and a developer regulating plate, the improvement wherein the developer is a mixture of carriers and toner, and wherein the carrier are at least one of spherical, substantially spherical, and flake-like shapes and a mixture of at least one kinds of carriers ranging from 30 to 150 .mu.m in average grain size.

Abstract: An image information processing apparatus includes an image memory having a page memory area for storing image information and a FIFO memory area which is provided integrally with the page memory and a read/write operation of which is controlled independently of the page memory area. Coded image information supplied from a recording unit is transferred to a codec circuit through the FIFO memory area and decoded by the codec circuit. The decoded information is stored in the page memory area.

Abstract: Bonded magnets are aligned around a shaft so as to form a roller shape magnetic body as shown in FIG. 2. In this case, a magnet A' having a portion B which does not change the breadth of a magnet in the circumferential direction even if the distance from the center of revolution changes, is arranged.

Abstract: At least one pair of adjacent magnets, magnet A of which serves both as an assistant magnet and a main magnet for a necessary magnetic pole is arranged so that it may have a magnetic component in the right angle direction with respect to the magnetized direction of another magnet B. Magnet A itself forms not only the main magnetic pole, but also is adapted to increase the flux density of magnet B in the outer circumference direction.

Abstract: A transportable telephone exchange apparatus which includes small capacity telephone exchange facilities which are divided into a plurality of containers for transportation to an installation site by boat or by vehicle, has an improved frame packing density within the frame and is constructed to facilitate maintenance.