Abstract: A signal processing apparatus includes: an inputting section inputting plural video signals; a signal processing section subjecting the plural video signals; one or more sub-multiscreen split display signal generating sections selecting P (P: integral number of 2 or more) kinds of video signals from the plural video signals subjected to the signal processing, and intermediate generation signals as one or more video signals generated while the signal processing section subjects the plural video signals to the signal processing, and synthesizing the P kinds of video signals, thereby generating one or more sub-multiscreen split display signals; and a multiscreen split display signal generating section selecting Q (Q: integral number of 1 or more) kinds of sub-multiscreen split display signals from the one or more sub-multiscreen split display signals, and synthesizing the Q kinds of sub-multiscreen split display signals, thereby generating a multiscreen split display signal.

Abstract: Disclosed herein is a video processing apparatus for performing video processing compatible with a dual link progressive scheme, said video processing apparatus including: two video processing circuits; and a control section.

Abstract: A digital signal switching apparatus is provided. The digital signal switching apparatus inputs and outputs digital signals to which status information formed of a block including a plurality of frames is added. The digital signal switching apparatus includes: a retrieving unit configured to retrieve the status information from the digital signal to which switching processing was performed; a storing unit configured to store one or more blocks of the status information retrieved by the retrieving unit; and an adding unit configured to add again the status information stored in the storing unit by the block to a position of the status information in the digital signal to which the switching processing was performed.

Abstract: A video apparatus for processing an input video signal in synchronization with an external reference signal is provided. The video apparatus includes a phase compensation FIFO memory and a measuring device. The phase compensation FIFO memory is configured such that the input video signal is written in synchronization with a clock demodulated from the input video signal and the video signal is read in synchronization with an internal reference clock of the apparatus generated from the external reference signal. The measuring device is configured to measure an amount of jitter/wander of the input video signal based on a calculation of a difference between data volume of the video signal obtained in the FIFO memory and a predetermined reference volume.

Abstract: A signal processing apparatus includes: an inputting section inputting plural video signals; a signal processing section subjecting the plural video signals; one or more sub-multiscreen split display signal generating sections selecting P (P: integral number of 2 or more) kinds of video signals from the plural video signals subjected to the signal processing, and intermediate generation signals as one or more video signals generated while the signal processing section subjects the plural video signals to the signal processing, and synthesizing the P kinds of video signals, thereby generating one or more sub-multiscreen split display signals; and a multiscreen split display signal generating section selecting Q (Q: integral number of 1 or more) kinds of sub-multiscreen split display signals from the one or more sub-multiscreen split display signals, and synthesizing the Q kinds of sub-multiscreen split display signals, thereby generating a multiscreen split display signal.

Abstract: A signal switching apparatus includes: a video reference input block; a plurality of synchronous signal generating blocks; a plurality of video signal input blocks; a signal processing block; a video signal output processing block; a switching block; and a control block.

Abstract: A sampling frequency conversion apparatus having sampling frequency conversion circuits for a plurality of channels includes a detector detecting phase information of digital signals inputted to the conversion circuit for each channel, and an input section inputting setting information for the conversion circuits for two or more channels to be phase-synchronized. The apparatus further includes a phase information supplier supplying the phase information for the conversion circuit for a specific channel designated by the setting information inputted into the input section to the conversion circuits for the remaining channels of those for two or more channels other than the conversion circuit for the specific channel, and a sampling frequency converter performing sampling frequency conversion on the phase information of the conversion circuits for the remaining channels in synchronization with the phase information for the specific channel supplied from the phase information supplier.

Abstract: A signal processing device includes an auxiliary data detection unit that detects presence or absence of auxiliary data from an SDI (Serial Digital Interface) signal and outputs a detection signal indicating the presence or absence of auxiliary data, a delay unit that delays the detection signal output from the auxiliary data detection unit by at least one field, a payload identifier control unit that outputs a control signal for controlling provision of payload identifier according to a logical operation with signals including the detection signal output from the auxiliary data detection unit and the detection signal delayed by the delay unit, and a payload identifier provision unit that adds a payload identifier to the SDI signal and outputs the signal if the control signal commands provision, and adds no payload identifier to the SDI signal and outputs the signal as it is if the control signal commands no provision.

Abstract: Disclosed herein is a video processing apparatus for performing video processing compatible with a dual link progressive scheme, said video processing apparatus including: two video processing circuits; and a control section.

Abstract: A signal switching apparatus includes: a video reference input block; a plurality of synchronous signal generating blocks; a plurality of video signal input blocks; a signal processing block; a video signal output processing block; a switching block; and a control block.

Abstract: A video apparatus for processing an input video signal in synchronization with an external reference signal is provided. The video apparatus includes a phase compensation FIFO memory and a measuring device. The phase compensation FIFO memory is configured such that the input video signal is written in synchronization with a clock demodulated from the input video signal and the video signal is read in synchronization with an internal reference clock of the apparatus generated from the external reference signal. The measuring device is configured to measure an amount of jitter/wander of the input video signal based on a calculation of a difference between data volume of the video signal obtained in the FIFO memory and a predetermined reference volume.

Abstract: A digital signal switching apparatus is provided. The digital signal switching apparatus inputs and outputs digital signals to which status information formed of a block including a plurality of frames is added. The digital signal switching apparatus includes: a retrieving unit configured to retrieve the status information from the digital signal to which switching processing was performed; a storing unit configured to store one or more blocks of the status information retrieved by the retrieving unit; and an adding unit configured to add again the status information stored in the storing unit by the block to a position of the status information in the digital signal to which the switching processing was performed.

Abstract: A sampling frequency conversion apparatus having sampling frequency conversion circuits for a plurality of channels includes a detector detecting phase information of digital signals inputted to the conversion circuit for each channel, and an input section inputting setting information for the conversion circuits for two or more channels to be phase-synchronized. The apparatus further includes a phase information supplier supplying the phase information for the conversion circuit for a specific channel designated by the setting information inputted into the input section to the conversion circuits for the remaining channels of those for two or more channels other than the conversion circuit for the specific channel, and a sampling frequency converter performing sampling frequency conversion on the phase information of the conversion circuits for the remaining channels in synchronization with the phase information for the specific channel supplied from the phase information supplier.

Abstract: This invention provides a matrix switcher apparatus adapted to arbitrarily distribute signals in a plurality of input channels to a plurality of output channels. The matrix switcher apparatus includes a cross point matrix adapted for connecting one matrix switcher unit to any other matrix switcher unit or units to carry out expansion of input/output, and input and output terminals expandable up to a predetermined maximum number of channels.

Abstract: Heat setting by the conventional tentering method provides polyamide film which is anisotropic in heat shrinkage. Therefore, only the central part of the film can be used for applications which need a low degree of anisotropy.The present invention provides an improved method of heat-setting biaxially oriented polyamide film in flat form. Said method is characterized in that biaxially oriented polyamide film, with the edges thereof gripped, is heated to an adequate temperature after preheating the polyamide film when it is desired, which is 10.degree.-40.degree. C. lower than the melting point of the film, by bringing it into close contact with the surface of a heating body, and immediately thereafter the film is cooled to a temperature at which the film does not deform easily.The present invention also provides biaxially oriented polyamide film which has a uniform heat shrinkage across the entire width of the film. The shrinkage by hot water at 100.degree. C. is smaller than 5.

Abstract: A process for preparing a heat shrinkable film which is made from a copolymer of ethylene and 0.5 to 10% by mole of an .alpha.-olefin having 4 to 12 carbon atoms, the copolymer having a g* value (i.e., intrinsic viscosity of the copolymer/intrinsic viscosity of a linear polyethylene having the same molecular weight) of 0.3 to 0.7, a melt index of 0.3 to 2.0 g/10 min., and a density at 25.degree. C. of 0.86 to 0.92 g/cm.sup.3, wherein a tubular film of the copolymer is stretched under the following conditions:(A) the film surface temperature at the starting point of expansion being within the range of 20.degree. to 30.degree. C.

Abstract: This invention relates to a tubular stretching method for producing a stretched film by passing a tubular thermoplastic resin film between pairs of nip rolls having mutually different peripheral speeds and by inflating the tubular film with internal pressure under heating and a stretching apparatus to be employed therefor. The pairs of nip rolls include at least three pairs of nip rolls. Pressurized air is admitted into a stretched bubble situated between the first and second rolls through a slit-like air injecting nozzle, and the bubble formed by the supplied pressurized air is inflated and stretched under heating. In this stage, if desired, the amount of injected pressurized air is controlled by manual or automatic control by detecting the diameter of the bubble so as to keep the bubble's diameter constant. After stretching, the tubular film is collapsed and is introduced to the second nip rolls. Both side ends of the collapsed film are cut open with film cutting knives to make two sheets of flat films.

Abstract: A process for producing a porous resin film containing a polyolefin resin as a main component, comprising meltinig a mixture of (A) 100 parts by weight of a polyolefin resin, (B) 0 to 50 parts by weight of a polyester-polyether type thermoplastic elastomer, and (C) a thermoplastic polyester resin having an instrinsic viscosity of not more than 0.5, the amount of the component (C) being from 25 to 90 part by weight per 100 parts of the total amount of the component (A) and the component (B), by heating the mixture at a temperature of not less than the melting temperature of the component (C); kneading the mixture at a shear rate of not less than 200/sec.

Abstract: A biaxially stretched film of an ethylene copolymer, preferably a mixture of (A) 90 to 50% by weight of a linear ethylene-.alpha.-olefin copolymer having a density of 0.90 to 0.93 g/cm.sup.3 at 25.degree. C. and a melt index of 0.2 to 3.0 g/10 min. and (B) 10 to 50% by weight of an ethylene polymer having a density of 0.87 to 0.91 g/cm.sup.3 at 25.degree. C. and less than the density of the copolymer (A) by at least 0.014 g/cm.sup.3 and a melt index of 0.2 to 5.0 g/10 min., said copolymer or copolymer mixture giving a DSC curve with an endothermic area under the temperature lower than its melting temperature (main endothermic peak temperature) by 10.degree. C. accounting for at leat 55% of the total endothermic area. The stretched film is little varying in thickness and is excellent in heat shrinkability at low temperature.

Abstract: An antistatic resin composition prepared by dissolving at least one of lithium nitrate and lithium chloride in cold or hot water, adding a molten surface active agent thereto, mixing them together to give a homogeneous mixture, and blending the same with a molten thermoplastic resin either before or after cooling and solidification. The composition is highly antistatic and gives a film having a high degree of transparency.