摘要:
The present invention relates to a data recorder which chronologically records continuous data such as image data without interruption at high speed, a medium which stores the procedure of recording or reproducing in the data recorder as a program, and a method of accessing the data recorder. In one embodiment, the data recorder is equipped with a group of recording units, and each group unit has a SCSI adaptor and a hard disk. The hard disk is connected to the SCSI bus and the SCSI adaptor is connected to a PCI bus. With this construction, data to be recorded in the data recorder is split into units of a prescribed size and assigned and recorded on the group of recording units so as to utilize a plurality of hard disks as a single logical recording space.
摘要:
A method for transmitting data when a system detects the amount of data which can be transferred, and divides the data to be transferred into a plurality of data blocks to form a list. A transfer device refers to the list and carries out input and output processing between a VTR or a network and a memory. Thus, the data can be efficiently transmitted at high speed with high reliability and independent of system configuration. Additionally, the data can be rearranged in the course of its transmission.
摘要:
A controller issues a command to an HDD interface to transfer AV data stored in HDDs to a memory. The HDD interface, in compliance with the command, transfers the AV data stored in the HDDs to a memory mapped on a bus. A memory controller reads the AV data out of the bus, and writes the AV data into the memory. The controller outputs the address of the AV data to be outputted to the memory controller. The memory controller reads out the AV data of the designated address, and outputs them to an AV data output interface. And the AV data output interface outputs the AV data. The controller issues a command to the HDD interface memory to record the AV data stored in the memory into the HDDs. The HDD interface, in compliance with the command, reads the data out of a memory mapped on the bus, and stores them in the HDDs. The memory controller reads the AV data out of the memory, and outputs them to the bus. At the same time, the controller designates to the memory controller the address in the memory into which the AV data inputted from the AV data input interface are to be written. The memory controller reads the AV data out of the AV data input interface, and writes them into the designated memory. By accomplishing this series of actions in synchronism with the frame period, AV data are stored in the HDDs, and also AV data stored in the HDDs are outputted.
摘要:
Deflection control apparatus for registering the electron beam, rasters of electrostatic-deflection pick-up tubes of a three-tube color television camera includes a compensating voltage generator with inputs connected to receive horizontal and vertical sawtooth deflection signals provided from a deflection signal generator, and outputs providing compensating voltages to adjust for size, skew, and rotation. A combining circuit is provided to add the deflecting signals to the respective compensating voltages to generate adjusted compensating voltages for application to respective electrostatic deflection plates of certain ones of the tubes. For each adjusted deflecting signal, the combining circuit includes a transistor circuit having an input electrode coupled to receive the associated compensating voltage and an output electrode connected through a load resistor to an output of the deflecting signal generator. A pair of SEPP-arranged transistors are provided with their bases connected to the output electrode of the transistor circuit and with their emitters coupled together, through like-value emitter resistors, to a respective deflection plate of one of the tubes. The SEPP-configured transistors permit a high impedance to be presented to the deflection signal generator to minimize the power consumption thereof, and a low resistance to be presented to the deflection plates, to keep the latter from undesirably integrating the deflection sawtooth voltages.
摘要:
An apparatus and a method for flexibly adjusting the contrast of an input image signal. Specifically, a control signal for controlling the contrast of a displayed image is generated responsive to an input image signal, and the luminance signal level of the input image signal is adjusted on the basis of the generated control signal. A display image for demonstration via a liquid crystal display surface is generated on the basis of the adjusted luminance signal level. The illumination brightness on the liquid crystal display surface is controlled in correlation with the adjustment of the luminance signal level on the basis of the generated control signal.
摘要:
An image processing apparatus and an image processing method permit easy adjustment of luminance and contrast, and also permit easy check of the brightness of a target image. A signal format of an image signal is determined by a determiner circuit, and an image signal of a luminance reference image that provides the standard for determining luminance is generated by a luminance reference signal generator circuit on the basis of a result of the determination. A mixing circuit generates an image signal for displaying a target image combined with a luminance reference image. The signal level of the image signal is adjusted by an adjusting circuit so as to adjust luminance and/or contrast. A discrimination display signal superimposing circuit generates a signal of a luminance identifying image superimposed in a desired luminance area. From the luminance reference image, the brightness at a desired position on an image can be easily checked.
摘要:
An automatic registration system for use in a plural pickup tube color television camera comprises an edge detector circuit which provides an edge signal representing the position of an edge of a sharply-edged object; a time difference detector circuit for detecting the difference in time between the scanning of the edge by, for example, a green pickup tube, and that by a red or blue pickup tube, and providing a deflection signal; a multiplier providing the product of the edge signal and the deflection signal as an error signal; a sample hold circuit for providing a misregistration signal, in response to the error signal, having a magnitude and polarity respectively indicative of the degree and direction of misregistration of the pictures of the pickup tubes; and a circuit for correcting misregistration in response to the misregistration signal. The circuit for correcting misregistration can include an up/down counter whose direction of counting is determined by the polarity of the misregistration signal.
摘要:
A camcorder (100), which is an example of image capturing devices, includes the following units. An imaging unit (110) captures moving pictures. An attribute information generation unit (120) generates attribute information indicating features of the moving pictures captured by the imaging unit (110). An evaluation unit (130) applies the attribute information generated by the attribute information generation unit (120) to a predetermined criterion, so as to calculate an evaluation value of the moving pictures for each predetermined time width. A still picture extraction unit (140) extracts a still picture from moving pictures in a predetermined time width, when the evaluation value calculated by the evaluation unit (130) for the predetermined time width exceeds an evaluation threshold value. A threshold value change unit (150) changes the evaluation threshold value based on at least one of person information and a composition change amount which are included in the attribute information. The person information is used for specifying a person captured in the moving pictures, and the composition change amount is an amount of change in image compositions between the moving pictures.
摘要:
A digital signal transmission apparatus that transmits a digital signal to another apparatus via a coaxial cable connected therebetween includes a signal divider configured to divide a digital signal to be transmitted into a plurality of signal groups; a plurality of modulators configured to modulate each of the plurality of signal groups obtained by the signal divider by using an orthogonal frequency division multiplexing method; a plurality of frequency shifters configured to shift each of the frequency bands of a plurality of modulation signals generated by the plurality of modulators from a baseband to a mutually different frequency band; and a signal sender configured to combine a plurality of modulation signals whose frequency bands are shifted by the plurality of frequency shifters and to transmit the signals to the coaxial cable.
摘要:
A content shooting apparatus is provided, in which thresholds for generating metadata concerning shot images can be calibrated in accordance with shooting conditions.In a content shooting apparatus (Acc) for converting content data (Dc) into a stream (AV) and recording the stream (AV) to a recording medium (214) in combination with content-related metadata (Dm), a camera (101) shoots a subject (105) and generates the content data (Dc), a camerawork statistics portion (206s) detects movement (σ) of the camera, a camera microcomputer (206) compares the detected movement (σ) with a predetermined value (Th) to generate the metadata (Dm), and an automatic threshold setting portion (206t) changes the predetermined value (Th) in accordance with the detected movement (σ).