摘要:
A multiplex TV signal processing apparatus in a television signal transmitting and receiving system includes an apparatus at the transmitting side which has a first amplitude-modulator for modulating a first carrier by a main signal to obtain a vestigial side-band amplitude-modulated main signal; a second amplitude-modulator for modulating a second carrier but whose frequency is the same as which phase is 90 degree different from the first carrier by a sub signal to obtain a carrier suppressed amplitude-modulated signal; a first inserter for inserting a first ghost canceling reference signal into a horizontal line of the main signal during a vertical blanking period; a second inserter for inserting a second ghost canceling reference signal into the same horizontal line of the sub signal as the first ghost canceling reference signal; and includes an apparatus at the receiving side which has: a first demodulator for demodulating the main signal; a second demodulator for demodulating the sub signal; a ghost canceler for canceling a ghost of the sub signal using the second ghost canceling reference signal; and a crosstalk canceler for canceling the crosstalk of the sub signal from the main signal using the first ghost canceling reference signal.
摘要:
In a multiplex signal processing apparatus, in the band of a demodulated signal in which a carrier is amplitude-modulated in a vestigial side band by a main signal, another carrier is superposed which is identical in frequency to the first carrier but different in phase by 90.degree. is amplitude-modulated its double side bands by a multiplex signal which is different from the main signal and which is formed into a vestigial side band signal by a nyquist filter. At least either the frequency or polarity of the multiplex signal is inverted on the transmission side by a multiplier, an oscillator and a filter. At least either the frequency or polarity of the multiplex signal is inverted on the reception side by a multiplier, an oscillator and a filter. The reception side has a crosstalk reduction filter for removing crosstalk from the main signal to the multiplex signal.
摘要:
A display device includes a display portion for displaying a video, a generator for generating a synchronization signal including a command signal synchronized with display of frame images of the video and a transmitter for transmitting the synchronization signal. The command signal including a predetermined member of pulse signals has a leading pulse signal for notifying a start of the command signal, a terminal pulse signal for notifying an end of the command signal and a control pulse signal for notifying a content of synchronization control synchronized with the display of the frame images.
摘要:
An eyeglass device for assisting in viewing a video to be stereoscopically perceived includes an optical filter portion with left and right filters for adjusting light amount to be transmitted to left and right eyes, respectively and a controller for controlling adjustment operation of the light amount by the optical filter portion, wherein the controller switches a control mode of the optical filter portion between a first control mode of controlling the optical filter portion so that the adjustment operation becomes synchronized with display of a frame image of the video and a second control mode of controlling the optical filter so that that the adjustment operation becomes slower than a frame rate of the video to make a viewer perceive the adjustment operation which is asynchronous with the display of the frame image.
摘要:
An image search apparatus has: a dimension reducing unit for reducing dimensions of multidimensional feature data to be produced as approximate data; an approximate-data storing unit for storing the produced approximate data with corresponding to the multidimensional feature data before the dimension reduction; a search request receiving unit for receiving an identifier which identifies multidimensional feature data of a person to be searched, at least as a search key; an approximate-space searching unit for calculating distances between approximate data corresponding to the received search key, and plural approximate data stored in the approximate-data storing unit, and for arranging the distances in order of similarity; and a real-space final ranking unit for again performing a distance calculation with using the multidimensional feature data before the dimension reduction, on a group of results in which the similarity is high, and for determining final rankings.
摘要:
A light output control device for laser light sources for respective RGB colors includes, for each of RGB, three sets, each including: a semiconductor laser for one of the colors; light output detection unit for detecting a light output from the semiconductor laser; light output adjustment unit for updating a light output target value; light output control unit for controlling the semiconductor laser based on the updated light output target value; and division unit for dividing the light output by an output from the light output adjustment unit to obtain a ratio of the rising of the light output, and includes rising determination unit for determining, based on results obtained by the respective division unit, a semiconductor laser with a slowest rising and outputs light output adjustment values for the respective colors. The light output adjustment unit update their respective light output target values based on the light output adjustment values. The light output control unit causes their respective corresponding semiconductor lasers to operate in accordance with a semiconductor laser whose rising time is slowest, based on the updated light output target values to keep RGB color balance upon start-up.
摘要:
An image search apparatus has:a dimension reducing unit for reducing dimensions of multidimensional feature data to be produced as approximate data;an approximate-data storing unit for storing the produced approximate data with corresponding to the multidimensional feature data before the dimension reduction;a search request receiving unit for receiving an identifier which identifies multidimensional feature data of a person to be searched, at least as a search key;an approximate-space searching unit for calculating distances between approximate data corresponding to the received search key, and plural approximate data stored in the approximate-data storing unit, and for arranging the distances in order of similarity; anda real-space final ranking unit for again performing a distance calculation with using the multidimensional feature data before the dimension reduction, on a group of results in which the similarity is high, and for determining final rankings.
摘要:
A resource manager allocates operation requests to security network devices according to device characteristics. The devices collect and/or manage data from an environment. The devices may include a camera, a multimedia recorder, an analyzer, and a meta-data server. One or more users submit operation requests to a controller. The controller allocates the network devices to the operation requests according to the device characteristics. The device characteristics include availability of the device, media flow data of the device, location of the device, and capabilities of the device.
摘要:
A method for determining motion compensation of an input image based on a motion vector of the input image from this input image to a reference image which has been sampled at a first set time, and the method includes calculating a motion vector of the input image based on a move, at a second set time, of a block unit which is a part of the input image and consists of a plurality of pixels, and calculating a motion vector of the reference image based on a motion, at the first set time, of a block unit which is a part of the reference image and consists of a plurality of pixels. Motion compensation of the input image is calculated both from the motion vector of the input image and from the motion vector of the reference image, to thereby realize a method for determining motion compensation with high precision.
摘要:
A multi-channel memory system for holding video image data employs a particular form of interleaving in each channel to achieve optimum performance. Data representing luminance and chrominance components are written into the memory in respectively different channels such that the luminance information occupies one part of a memory row while the chrominance information occupies another part. The channel assignment is cycled within a memory row and is changed from one row of the memory to the next such that all luminance information in the row is contiguous and all chrominance information is contiguous yet luminance information and its corresponding chrominance information may be accessed in a single operation using all three channels. The memory is organized in three channels, each channel including two devices and each device including two banks. In addition to the interleaving of the channels, memory rows holding image data which are adjacent on the screen are stored in respectively different banks and devices such that this adjacent data may be accessed quickly.