Abstract: 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.

Abstract: In a bitstream transcoder, the computational cost and the memory area are suppressed so that stream transcoding is performed with a reduced number of times of computing and a reduced memory area. The transcoder includes a VLD portion 11 for performing VLD on a bitstream encoded in MPEG-2 to output quantized DCT coefficients; an IQ portion 12 for receiving the coefficients, and outputting inverse-quantized DCT coefficients; a coefficient table 132 for storing a transformation matrix obtained by multiplying transformation matrices for operating band-limiting filter, IDCT, down-sampling and DCT, respectively, together in advance; a DCT scaling portion 13 for performing down-sampling on the DCT coefficients by use of the transformation matrix; a Q portion 15 for outputting quantized DCT coefficients down-sampled horizontally and vertically; and a VLC portion 16 for encoding the quantized DCT coefficients in MPEG-4 to output a bitstream.

Abstract: Disclosed herein is a recording and playback apparatus that stores plural kinds of signals, for example, programs on multiple channels. When, while one kind of signal out of the plural kinds of signals is being played back, playback of another kind of signal is instructed, the another kind of signal is played back starting from a position backward of another position which was current when the playback of the another kind of signal was instructed.

Abstract: 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.

Abstract: In a storing apparatus having a built-in recording medium, which stores program files, if there is no method of securing a free capacity of the recording medium, except for deletion of files, a user may have a feeling of resistance against the deletion of stored program files. Further, in securing the free capacity through recompression, there is a limitation to achieving a securable capacity. These problems can be solved by increasing the capacity of the disk to some extent, but this method is insufficient. Thus, a storing apparatus is provided in which, when the capacity of the recording medium is small, selected program stream stored in a hard disk is outputted via a network control unit to an external storage medium, and, after that program stream is outputted, the corresponding program stream is deleted from the hard disk.

Abstract: Data of both MPEG-2 and MPEG-4 is generated simultaneously with a small circuit scale and a small power consumption. A moving picture encoding apparatus for encoding a moving picture through motion-compensated inter-frame prediction has: a MPEG-2 encoding unit including a motion vector estimator, a frame memory, a forward prediction circuit, a bidirectional prediction circuit, a prediction selection circuit, an intra-frame encoding circuit and a local decoding circuit; a MPEG-4 encoding unit including a frame extraction circuit for extracting a predetermined MPEG-2 frame and a transcoder for encoding the extracted frame; a motion vector calculator calculating a motion vector to be used for MPEG-4 prediction from a motion vector to be used for MPEG-2 prediction; and a prediction mode controller controlling the prediction mode of the MPEG-2 encoding unit in such that the MPEG-2 prediction mode becomes coincident with the MPEG-4 prediction mode.

Abstract: Data of both MPEG-2 and MPEG-4 is generated simultaneously with a small circuit scale and a small power consumption. A moving picture encoding apparatus for encoding a moving picture through motion-compensated inter-frame prediction has: a MPEG-2 encoding unit including a motion vector estimator, a frame memory, a forward prediction circuit, a bidirectional prediction circuit, a prediction selection circuit, an intra-frame encoding circuit and a local decoding circuit; a MPEG-4 encoding unit including a frame extraction circuit for extracting a predetermined MPEG-2 frame and a transcoder for encoding the extracted frame; a motion vector calculator calculating a motion vector to be used for MPEG-4 prediction from a motion vector to be used for MPEG-2 prediction; and a prediction mode controller controlling the prediction mode of the MPEG-2 encoding unit in such that the MPEG-2 prediction mode becomes coincident with the MPEG-4 prediction mode.

Abstract: The present invention provides a system and method of surveillance to support an early intensive surveillance setup in surrounding areas on the locality of a hazard. A surveillance system of the present invention comprises two or more surveillance terminals and a surveillance center to which the surveillance terminals are connected via a network. Each surveillance terminal comprises a hazard detecting unit, a hazard signal sending unit, and a video data sending unit. The surveillance center comprises a unit for detecting a hazard signal from one or more of the surveillance terminals and a command sending unit for sending a surveillance command to the two or more surveillance terminals. In response to a hazard occurring, the surveillance center changes a surveillance setup of a surveillance terminal which has just detected the hazard and surveillance terminals falling in surrounding areas on the hazard locality, so that target zonal cooperative surveillance is performed.

Abstract: The present invention relates to a process for preparing a &bgr;-oxonitrile compound or an alkali metal salt thereof which comprises reacting a carboxylic ester represented by the formula (1):

Abstract: In decoding a data signal that is associated with a compressed video signal and a compressed audio signal in digital broadcast and is multiplexed in digital broadcast, a digital broadcast receiver according to the present invention efficiently decodes the data signal when the data signal includes a compressed video signal or a compressed audio signal and the compression method used for the compressed video signal or the compressed audio signal is the same as that used for the compressed video signal or the compressed audio signal multiplexed in the digital broadcast.

Abstract: A security camera system having one or more monitoring cameras, each of which transmits a digital video signal after compressing/encoding, are connected to a controller via a network. In the controller, a media control section stores the video signal supplied from the monitoring cameras in a storage medium and reads out the video signal as needed. Image processing for privacy protection is carried out to the real-time video signal supplied from the monitoring camera and the video signal read out from the storage medium. The level of the image processing for privacy protection is switched depending on the authority of a user who views the video image. Further, even for the same user authority, the image processing level for privacy protection is switched and adjusted depending on the size of the object in the video image.

Abstract: The present invention provides a surveillance system, surveillance terminals, and a surveillance center, the surveillance system being configured to perform effective hazard alert signaling, depending on the hazard type, and a hazard and alert signaling method. The surveillance system of the invention where a plurality of surveillance terminals 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.

Abstract: In decoding a data signal that is associated with a compressed video signal and a compressed audio signal in digital broadcast and is multiplexed in digital broadcast, a digital broadcast receiver according to the present invention efficiently decodes the data signal when the data signal includes a compressed video signal or a compressed audio signal and the compression method used for the compressed video signal or the compressed audio signal is the same as that used for the compressed video signal or the compressed audio signal multiplexed in the digital broadcast. The data signal separated by a demultiplexer 21 is stored in a data decoder 45 in a memory 40.

Abstract: Data of both MPEG-2 and MPEG-4 is generated simultaneously with a small circuit scale and a small power consumption. A moving picture encoding apparatus for encoding a moving picture through motion-compensated inter-frame prediction has: a MPEG-2 encoding unit including a motion vector estimator, a frame memory, a forward prediction circuit, a bidirectional prediction circuit, a prediction selection circuit, an intra-frame encoding circuit and a local decoding circuit; a MPEG-4 encoding unit including a frame extraction circuit for extracting a predetermined MPEG-2 frame and a transcoder for encoding the extracted frame; a motion vector calculator calculating a motion vector to be used for MPEG-4 prediction from a motion vector to be used for MPEG-2 prediction; and a prediction mode controller controlling the prediction mode of the MPEG-2 encoding unit in such that the MPEG-2 prediction mode becomes coincident with the MPEG-4 prediction mode.

Abstract: A method for managing a network system including at least one host system and a registration server provided at a remote location from the at least one host system, the at least one host system and the registration server being coupled to each other by a communication link, includes receiving at the registration server a first request to register a first administrator of a first host system, the first administrator being provided with authority to control access to the first host system by one or more users, the first host system being associated with a first entity. Validity of the first registration request is authenticated at the registration server. The first registration request is considered valid if valid first authorization information is provided to the registration server in connection with the first registration request. The registration server is associated with an entity that is different from the first entity.

Abstract: In a bitstream transcoder, the computational cost and the memory area are suppressed so that stream transcoding is performed with a reduced number of times of computing and a reduced memory area. The transcoder includes a VLD portion 11 for performing VLD on a bitstream encoded in MPEG-2 to output quantized DCT coefficients; an IQ portion 12 for receiving the coefficients, and outputting inverse-quantized DCT coefficients; a coefficient table 132 for storing a transformation matrix obtained by multiplying transformation matrices for operating band-limiting filter, IDCT, down-sampling and DCT, respectively, together in advance; a DCT scaling portion 13 for performing down-sampling on the DCT coefficients by use of the transformation matrix; a Q portion 15 for outputting quantized DCT coefficients down-sampled horizontally and vertically; and a VLC portion 16 for encoding the quantized DCT coefficients in MPEG-4 to output a bitstream.

Abstract: A security camera system capable of continuing controls and records even in an emergency wherein individual devices are broken.

Abstract: There is disclosed a process for producing a 2-substituted thiopyrimidine-4-carboxylate represented by the formula (3): wherein R2 represents a substituted or unsubstituted hydrocarbon group and R3 represents a hydrocarbon group, which comprises reacting-an &agr;-keto ester compound represented by the formula (1): R1OCH═CHCOCO2R2  (1) wherein R1 represents a substituted or unsubstituted hydrocarbon group, and R has the same meaning as defined above, with an isothiourea compound represented by the formula (2): wherein R3 has the same meaning as defined above.

Abstract: There is disclosed a process for producing a 2-substituted thiopyrimidine-4-carboxylate represented by the formula (3): 1

Abstract: An anti-reflection film comprises a low refractive index layer. The low refractive index layer comprises a polymer binder and micro particles. The micro particles are so deposited to superpose at least one micro particle on another micro particle, to form micro voids surrounded by the micro particles. The micro particles have a mean particle size of 5 to 200 nm. A display device provided with the anti-reflection film is also disclosed.