摘要:
A surveillance system having surveillance terminals and a surveillance center is configured to perform effective hazard alert signaling, depending on the hazard type. The surveillance system comprises a plurality of surveillance terminals, which are connected to the surveillance center by a network, carries out hazard and alert signaling. One surveillance terminal detects a hazard and sends a hazard information signal reporting what hazard has just been detected to the surveillance center. The surveillance center receives the hazard information signal, identifies what type of hazard source and the surveillance terminal that sent the hazard information signal, selects surveillance terminals to be alerted to the hazard from among the plurality of surveillance terminals, depending on the identified type of the hazard source and its locality, and sends a hazard alert signal to the selected surveillance terminals.
摘要:
A reproducing device for playing back data from a recording medium, including: play back circuits for reading first stream data, which includes first video data, first audio data, and first subpicture data, from a recording medium; download data storage circuits for storing second stream data, which includes at least one of second video data, second audio data and second subpicture data downloaded via a network; and selection circuits for conducting at least one of: switching from said first video data to said second video data; switching from said first audio data to said second audio data, and switching from said first subpicture data to said second subpicture data; wherein data which is newly switched by said selection circuits and data which is not switched by said selection circuits are synchronously superimposed and outputted.
摘要:
The present invention is a decoding apparatus for decoding an encoded video signal capable of displaying a secondary video synchronously with a primary video. The decoding apparatus includes: an auxiliary information analyzing part that analyzes auxiliary information including display auxiliary information about a display position and/or a display size of the secondary video, and applied time information by which the display auxiliary information is applied; a reference time counter that indicates a reference time at which a video is decoded and displayed; a comparing part that compares the applied time information with the reference time counter; a display screen forming part that uses a primary video and a secondary video to form a display screen; and a control part that controls the display screen forming part, wherein the control part controls the display position and/or the display size of the secondary video by affording a command to the display screen forming part using the display auxiliary information, based on an output result of the comparing part.
摘要:
A surveillance system having surveillance terminals and a surveillance center is configured to perform effective hazard alert signaling, depending on the hazard type. The surveillance system comprises a plurality of surveillance terminals, which are connected to the surveillance center by a network, carries out hazard and alert signaling. One surveillance terminal detects a hazard and sends a hazard information signal reporting what hazard has just been detected to the surveillance center. The surveillance center receives the hazard information signal, identifies what type of hazard source and the surveillance terminal that sent the hazard information signal, selects surveillance terminals to be alerted to the hazard from among the plurality of surveillance terminals, depending on the identified type of the hazard source and its locality, and sends a hazard alert signal to the selected surveillance terminals.
摘要:
Heretofore, there have been problems in which data prerecorded on a recording medium cannot readily be played back in synchronism with data downloaded via a network because the simultaneous use of a plurality of download data has not been taken into consideration. To solve such problems, data is played back by using a first buffer memory for temporarily storing a stream that is received at one input terminal, a demultiplexer for demultiplexing packets output from the first buffer memory in accordance with packet ID numbers, second buffer memories for temporarily storing a stream that is input from another input terminal, and a packet switcher for operating selector switches to select and output either packets output from the demultiplexer or packets output from the second buffer memories.
摘要:
The problem to be solved is to make it possible to download via a network, efficiently manage, retrieve, and reproduce an external content associated with a content recorded on a recording medium. To solve the problem, a program is used which controls reproduction of information located on a recording medium and related information. The program includes the steps of: obtaining from the outside specific information associated with predetermined information recorded on a recording medium; and obtaining medium identification information located on a recording medium; wherein if the specific information has been obtained, a storage unit in a reproducing apparatus is controlled to associate the specific information with the medium identification information for storage.
摘要:
A still picture recording digital camera including a light quantity limiter for interrupting incident light to the camera; an image pickup unit including a pixel for converting the incident light to an electric pixel signal and outputting the pixel signal as a digital image signal; a signal processor for generating a digital image signal having a predetermined format; a recording unit for recording the digital image signal output from the image pickup unit or the signal processor; the light quantity limiter limiting the incident light quantity to a predetermined quantity and then interrupting the incident light; the image pickup unit outputting a dynamic picture digital image signal when the light quantity limiter is limiting the incident light quantity, and outputting a still picture image signal after the light quantity limiter has interrupted the incident light; and the signal processor performing different signal processing operations when the signal processor has received a digital image signal for a dynamic picture and a digital image signal for a still picture.
摘要:
An image pickup apparatus capable of generating a motion picture and a still picture. An amount of exposure in a still imaging mode is increased as compared with the amount of exposure for mode is increased as compared with the amount of exposure for one field in the motion picture imaging mode, preferably twice as large as the latter. In the still picture mode, electric charges are swept out from a CCD by an exposure control simultaneously with closing of a diaphragm for adjusting the amount of exposure. Upon occurrence of error in the closing operation of the diaphragm, the amount of exposure in the still picture mode is set to a design value. On the basis of difference between the design value and an actually measured value of the amount of exposure, gain for video signal is corrected. In the motion picture mode, the diaphragm and the electronic shutter speed is adjusted for preventing flicker from making appearance under illumination of a fluorescent lamp in indoor photographing. The adjusted speed can be 1/100 sec.
摘要:
Flicker which occurs when a television camera images an object under illumination of a flickering light source such as fluorescent lamp is minimized without causing sensitivity of a photoelectric conversion element and hence the camera to be degraded under a non-flickering light source. The television camera includes an automatic iris control device, an automatic gain control circuit, a microcomputer, a photoelectric conversion element and an integration circuit for integrating output signal of the photoelectric conversion element for each field period. The microcomputer sets a signal storage time of the photoelectric conversion element to a value by which flicker noise can be restricted when flicker is detected on the basis of a change of an output signal of the integration circuit and sets it to another value when a change of light source is detected on the basis of a change of iris value and gain.
摘要:
A solid-state image pick-up device is provided which will not have a waveform of the picture element signals adversely influenced by a start pulse of the read out. The device includes photoelectric converting elements arranged in a two dimensional array and a shift register for generating horizontal scan pulses in response to a start pulse and clock pulses. The scan pulses are provided to means for sequentially reading out picture element signals from the photoelectric converting elements. A clock pulse generator responsive to the start pulse is also provided which generates clock pulses to the shift register after a lapse of a predetermined period following the start pulse. The period is selected to avoid an adverse influence on the waveform of the picture element signals by the start pulse.