Abstract: A portable telephone set capable of recognizing a call during music replay is disclosed. This portable telephone set comprises talking means and music replay means, and posts a call when receiving the same during music replay by the music replay means. Thus, the call can be recognized during the music replay.

Abstract: A data delivery server (18) includes a download server (24), and a mobile telephone (12) is connected to the download server (24) via an Internet (20), a mobile telephone network (16), and a radio base station (14). The mobile telephone (12) is capable of downloading desired music data from the data delivery server (18). More specifically, a menu server (22) determines one access point where traffic is not congested based on a connection situation to the access point of the download server (24), and transmits to the mobile telephone (12) download information including a content ID which recognizes a determined access point and the desired music data. Therefore, the mobile telephone (12) is capable of downloading the music data by connecting it to the download server (24) from the access point where traffic is not congested based on the download information. Thus, a required time for downloading cannot be longer than necessary.

Abstract: Provided is a network system which is capable of smooth remote control of appliances in a household while improving the security. A household server for controlling home appliances and an external server for mediating between the household server and a user terminal are set on an Internet. The household server gives a right to access only to the external server that is registered in advance. When accessed by the user terminal, the external server performs user authentication and, if the access is authenticated as from an authorized user, specifies which household server is to be used by the user, and makes an access request to the corresponding server. The household server checks whether the access request is valid or not and, when the access request is found as a result to be valid, allows the user terminal to input a control instruction through the intermediation of the external server.

Abstract: There are described a data recording system, a data recording method, and a recording medium, all of which are directed to enabling easy editing of AV data without involvement of duplication of the AV data, as well as to eliminating a necessity for an additional data recording region. In the recording system, at the time of recording of primary data, there is prepared an original file which stores link data formed by arranging in sequence address data for reproduction purposes stored in a recording region on a recording medium. Further, through editing of the original file, there is prepared a virtual file which stores link data formed by arranging in sequence address data for reproduction purposes stored in the recording region on the recording medium. The data are reproduced according to these files.

Abstract: A portable telephone set capable of recognizing a call during music replay is disclosed. This portable telephone set comprises talking means and music replay means, and posts a call when receiving the same during music replay by the music replay means. Thus, the call can be recognized during the music replay.

Abstract: A portable telephone set capable of recognizing a call during music replay is disclosed. This portable telephone set comprises talking means and music replay means, and posts a call when receiving the same during music replay by the music replay means. Thus, the call can be recognized during the music replay.

Abstract: A data delivery server (18) includes a download server (24), and a mobile telephone (12) is connected to the download server (24) via an Internet (20), a mobile telephone network (16), and a radio base station (14). The mobile telephone (12) is capable of downloading desired music data from the data delivery server (18). More specifically, a menu server (22) determines one access point where traffic is not congested based on a connection situation to the access point of the download server (24), and transmits to the mobile telephone (12) download information including a content ID which recognizes a determined access point and the desired music data. Therefore, the mobile telephone (12) is capable of downloading the music data by connecting it to the download server (24) from the access point where traffic is not congested based on the download information. Thus, a required time for downloading cannot be longer than necessary.

Abstract: A video signal processing circuit includes an input processor configured to modify an input video signal in accordance with image magnification data and a buffer memory for storing the modified video signal. The processing unit also includes a write control unit configured to control a write function to the buffer memory by generating a write control signal in accordance with the image magnification data. The write control unit includes a calculating circuit configured to calculate image size data on the basis of the write control signal in response to a change in the image magnification data. The write control unit also includes an inhibition circuit configured to inhibit the write function to the buffer memory at least while the calculation circuit calculates the image size data. The processing unit further includes a read control unit for controlling reading from the buffer memory in accordance with the calculated image size data. A method of processing a video signal also is disclosed.

Abstract: A video signal processing circuit uses a buffer memory for reducing or expanding video signals in the generation of child images to be displayed within a display window. Image size data, stored in a header within the buffer memory, and a reduced video signal are prevented from representing different image reduction ratios which might otherwise occur when the reduction ratio is changed. At the time of changing the reduction ratio, image size data SIZ are calculated from a write enable signal based on reduction ratio data K, for a one-field period just after the change by an input video clock generator 22. The calculated image size data are written to a header together with a reduced video signal in a field memory 2, and a flag bit SP indicating the change in the reduction ratio is also written to the header for the one-field period just after the change.

Abstract: A write clock signal and a write select signal are outputted from an input video clock generator, a read clock signal and a read select signal are outputted from a display video clock generator, either of first and second field memories is selected as the write memory or the read memory in compliance with the signal level of the respective select signal and writing is carried out in the selected write memory once a predetermined time has elapsed following inversion of the write select signal. When reading has commenced from the first and second buffer memory, a match is detected between the signal levels of the write select signal and the read select signal at each field or at each frame and writing and thus reading address passing is predicted.

Abstract: A video signal converter comprising a frequency setting circuit, a first clock generator, a second clock generator, an analog-to-digital converter, a line conversion ratio setting circuit, a number of scanning lines converter, a frame memory, a writing controller, a reading controller and a digital-to-analog converter is disclosed. The frequency setting circuit sets a first frequency Fi which satisfies a formula: Fi.ltoreq.(To.times.Fo)/Ti, where Ti is a horizontal scanning period of a first analog video signal, To is a horizontal scanning period of a second analog video signal and Fo is a second frequency. The line conversion ratio setting circuit sets a line conversion ratio R which satisfies an equation: R=m/k, based on a width-to-height ratio 1/m of each pixel of the first digital video data and a width-to-height ratio 1/k of each pixel of second digital video data.

Abstract: A control system computes a plurality of detection data and outputs a control amount for a control target. The control system includes a detecting circuit for detecting the plurality of detection data, a first computing circuit for quantitatively computing a degree at which the plurality of detection data output from said detecting circuit conform with a preset condition in accordance with a predetermined function and generating an output function for controlling the control target, a second computing circuit for computing a centroid of an external figure which is obtained by processing an external figure of the output function, output from the first computing circuit, in accordance with predetermined approximation, and a driving section for driving the control target based on an output from the second computing circuit.

Abstract: There are described a data recording system, a data recording method, and a recording medium, all of which are directed to enabling easy editing of AV data without involvement of duplication of the AV data, as well as to eliminating a necessity for an additional data recording region. In the recording system, at the time of recording of primary data, there is prepared an original file which stores link data formed by arranging in sequence address data for reproduction purposes stored in a recording region on a recording medium. Further, through editing of the original file, there is prepared a virtual file which stores link data formed by arranging in sequence address data for reproduction purposes stored in the recording region on the recording medium. The data are reproduced according to these files.