Abstract: An electronic device includes: a communication device configured to communicate with a server device that provides data; a storage device; and a control device that cyclically accesses the server device using the communication device to check whether or not new data has been provided from the server device, determines, based on a predetermined probability, whether to download the new data from the server device or to postpone download when the new data has been provided, and stores, in the storage device, the new data downloaded from the server device.

Abstract: In a server-client network conference system having a conference server 100 and a plurality of conference terminals 140a to 140n through a network 130, a conference data storage section 120 creates a real-time conference data file 123 and an index file 122 containing time-of-day information and heading information while a conference proceeds. After the conference is over, edit such as voice stream merge processing, image thinning-out processing, etc., in the real-time conference data file 123 is performed to create a minute file 124 and the minute file 124 is managed with an index file 122.

Abstract: It is assumed that a presenter A makes an important statement at a scene 2 in a real-time conference. Participants B and C press a chapter insertion button at times t4 and t5 respectively (steps S1-1 and S1-2). A conference server turns back the time by a predetermined time from the times t4 and t5 (steps S2-1 and S2-2) and sets headings (manual insertion chapters) HCP2 and HCP3 at the turned-back times (t2 and t3). Alternatively, the conference server determines the time separator just before the time (namely, CP4) and sets a heading HCP1 at the time (S4). Accordingly, the heading is set before the scene 2 where the presenter A makes an important statement.

Abstract: In addition to a conference server 100, a record server 200 is provided. The conference data of a real-time conference is stored in a storage section 214 of the record server 200 (S2). A conference terminal 300a performs connection processing to the conference (S1) and then transmits a catch-up playback request to the record server 200 (S3). The record server 200 determines whether or not catch-up playback is enabled (S4) and then distributes the past conference data (S6), and notifies the conference terminal 300a that the catch-up playback end point has come (S7-1). Accordingly, the connection of the conference terminal 300a is switched to the conference server 100 (S9) and the conference terminal 300a is connected to the real-time conference (S10).

Abstract: In an image display system, the control device (110) of a host computer (100) performs an image displacement process in accordance with a program stored in a USB memory (120). By the image displacement process, a pointer (300), which is an image, is displaced between the main display (140) of the host computer (100) and the sub display (220) of a display apparatus (200). Moreover, the sub display (220) is authenticated on the basis of authentication information (122) stored in the USB memory (120) in advance, and is clarified at the stage that the USB memory (120) is attached. Moreover, in the displacement of the pointer (300), if the pointer (300) is deviated from the screen with regard to the operation for displacing in any direction on the main display or sub display, the pointer (300) is displaced from one display to the other display, and the displacement direction is maintained.

Abstract: In a server-client network conference system having a conference server 100 and a plurality of conference terminals 140a to 140n through a network 130, a conference data storage section 120 creates a real-time conference data file 123 and an index file 122 containing time-of-day information and heading information while a conference proceeds. After the conference is over, edit such as voice stream merge processing, image thinning-out processing, etc., in the real-time conference data file 123 is performed to create a minute file 124 and the minute file 124 is managed with an index file 122.

Abstract: In addition to a conference server 100, a record server 200 is provided. The conference data of a real-time conference is stored in a storage section 214 of the record server 200 (S2). A conference terminal 300a performs connection processing to the conference (S1) and then transmits a catch-up playback request to the record server 200 (S3). The record server 200 determines whether or not catch-up playback is enabled (S4) and then distributes the past conference data (S6), and notifies the conference terminal 300a that the catch-up playback end point has come (S7-1). Accordingly, the connection of the conference terminal 300a is switched to the conference server 100 (S9) and the conference terminal 300a is connected to the real-time conference (S10).

Abstract: It is assumed that a presenter A makes an important statement at a scene 2 in a real-time conference. Participants B and C press a chapter insertion button at times t4 and t5 respectively (steps S1-1 and S1-2). A conference server turns back the time by a predetermined time from the times t4 and t5 (steps S2-1 and S2-2) and sets headings (manual insertion chapters) HCP2 and HCP3 at the turned-back times (t2 and t3). Alternatively, the conference server determines the time separator just before the time (namely, CP4) and sets a heading HCP1 at the time (S4). Accordingly, the heading is set before the scene 2 where the presenter A makes an important statement.

Abstract: A network conference system with multipoint connection in which a plurality of users (at least two) are allowed to speak simultaneously, a server-client system in which distribution of information can be easily managed in a centralized manner. A management server (100) executes real-time and dynamic management of the information origination authorization (speech authorization, etc.,) for all sites and on the other hand, an information origination control section (221) of each conference terminal appropriately controls transmission of information from the conference terminal to a network in response to the presence or absence of the information origination authorization.

Abstract: A data management device in a karaoke system which receives a first data file by a receiving unit and is stored in a rewritable memory such as a hard disk. A second data file, recorded on a recording medium such as a CD-ROM, is read out by a reading unit. A file number comparing unit then compares the file numbers of the first and second data file and a file managing unit erases the first data file if the file numbers coincide with each other. In addition, a version comparing unit compares versions of both the first and second data file. If the first data file version is older than the second data file version, then the file managing unit erases the first data file version, so as to ensure that the new version is always used. Furthermore, a detecting unit detects whether data files corresponding to targeted items are recorded in both, the rewritable memory and the recording medium. In the event that data files are recorded in both, the file managing unit erases the data file in the rewritable memory.

Abstract: A musical sound producing device produces musical sound from MIDI data. The MIDI data includes play data for producing musical sound of plurality of tones, pitch data for designating pitch of the musical sound and pitch variable/invariable data indicating pitch variable tones and pitch invariable tones. The device includes: MIDI sound source for producing musical sound of tones designated by the play data with pitch designated by the pitch data; and pitch change circuit for changing the pitch data of only pitch variable tones specified by the pitch variable/invariable data in accordance with pitch change information.

Abstract: A melody controlling apparatus is provided with: a reproducing device for reproducing first digital sound source controlling information and melody controlling information related to the first digital sound source controlling information; a memory for storing melody changing information; a melody changing device for reading the melody changing information from the memory according to the melody controlling information reproduced by the reproducing device, and changing the first digital sound source controlling information on the basis of the melody changing information to generate second digital sound source controlling information; and a digital sound source for generating music information signal from the second digital sound source controlling information.

Abstract: In a music accompaniment playing system, MIDI (Music Instrument Digital Interface) sound source controlling data to control a MIDI sound source for generating accompaniment music information for music accompaniment playing, and display controlling data to perform a display corresponding to the MIDI sound source Controlling data, are reproduced from a record medium for music accompaniment playing. The display controlling data includes lyrics data corresponding to lyrics for music accompaniment playing, and accompaniment chord data corresponding to an accompaniment chord of the accompaniment music information.

Abstract: A karaoke system includes: reproduction unit for reproducing a MIDI sound source control information for karaoke song from a karaoke data recording medium, the MIDI sound source control information including playing time data of the karaoke songs; operation unit for inputting request of at least one desired karaoke song and karaoke playing time; calculation unit for obtaining playing time data of the requested karaoke songs and for calculating total playing time required for playing all of the requested karaoke songs; determination unit for comparing the total playing time with remaining playing time calculated on the basis of the karaoke playing time and for determining whether all of the requested songs can be played within the remaining playing time or not; and display unit for displaying a notice related to the result of the determination of the determination unit.

Abstract: A karaoke apparatus includes: a karaoke information reproducing unit for reproducing MIDI sound source control information stored in a storage unit; a MIDI sound source control unit for producing first MIDI sound source control information and second MIDI sound source control information from the MIDI sound source control information reproduced by the karaoke information reproducing unit; a first MIDI sound source for producing first karaoke accompaniment information from the first MIDI sound source control information; a second MIDI sound source for producing second karaoke accompaniment information from the second MIDI sound source control information; and a mixing unit for mixing the first karaoke accompaniment information and second karaoke accompaniment information to output mixed karaoke accompaniment information.