Abstract: A reproducing apparatus for reproducing data from a record medium having a program area and a management area, the program area being used for recording a plurality of files, the management area being used for managing forging prohibition information against a particular file recorded in the program area is disclosed, the apparatus comprising a calculating means for calculating the forging prohibition information managed in the management area of the record medium whenever a file recorded in the recorde medium is reproduced, a comparing means for comparing a value calculated by the calculating means corresponding to a former reproduction command with a value calculated by the calculating means corresponding to a current reproduction command, and a controlling means for permitting the file corresponding to the current reproduction command to be reproduced when the value calculated corresponding to the former reproduction command is the same as the value calculated corresponding to the current reproduction comm

Abstract: An editing apparatus and method for dividing or combining a data file(s) that is segmented into blocks of a predetermined data length and recorded in a non-volatile memory. An attribute file having a predetermined length is modified so as to reflect such dividing or combining. Such attribute file is recorded in the non-volatile memory.

Abstract: An editing apparatus wherein the editing of content is controlled according to its supply source. Identification information for identifying a content supply source is recorded in a recording medium in correspondence with the content supplied from the content supply source and recorded in a recording medium. When editing of the content is requested by a user, the identification information corresponding to that content is checked. According to the content supply source identified by the identification information, the editing of the content is enabled or disabled.

Abstract: An editing apparatus wherein the editing of content is controlled according to its supply source. Identification information for identifying a content supply source is recorded in a recording medium in correspondence with the content supplied from the content supply source and recorded in the recording medium. When editing of the content is requested by a user, the identification information corresponding to that content is checked. According to the content supply source identified by the identification information, the editing of the content is enabled or disabled.

Abstract: A reproducing apparatus for reproducing data from a record medium having a program area and a management area, the program area being used for recording a plurality of files, the management area being used for managing forging prohibition information against a particular file recorded in the program area is disclosed, the apparatus comprising a calculating means for calculating the forging prohibition information managed in the management area of the record medium whenever a file recorded in the recorde medium is reproduced, a comparing means for comparing a value calculated by the calculating means corresponding to a former reproduction command with a value calculated by the calculating means corresponding to a current reproduction command, and a controlling means for permitting the file corresponding to the current reproduction command to be reproduced when the value calculated corresponding to the former reproduction command is the same as the value calculated corresponding to the current reproduction comm

Abstract: A recording system is constructed with at least first and second recording devices, both of which are connected to a network and have channel selection functions and functions of reserving the recording of broadcast program information forming a broadcast program. The first recording device includes a first memory for storing recording reservation information from a user, a judgement circuit for judging whether the recording reservation information is for a receivable broadcast channel, and a sending circuit for producing a recording reservation request containing the recording reservation information and for sending it to the network when it is judged that the recording reservation information is not for a receivable broadcast channel.

Abstract: A recording apparatus is disclosed, that comprises a compression process means for compressing an input digital signal corresponding to a predetermined compression process and segmenting the compressed digital signal into blocks, a fixed value generating means for generating a predetermined fixed value, an adding means for adding the fixed value generated by the fixed value generating means at a predetermined timing to the blocks of the digital signal compressed by the compression process means, an encrypting means for encrypting the fixed value and the compressed digital signal added by the adding means, and a recording means for recording the fixed value and the compressed digital signal encrypted by the encrypting means to a record medium.

Abstract: A recording system having a plurality of recording apparatuses connected to a network. The apparatuses can select a channel for receiving a broadcast signal and record reservations for recording a program broadcast through a broadcasting channel at a predetermined time of day. One of the apparatuses, denoted as a reservation-receiving recording apparatus, receives recording reservation information from a user and detects if there is any overlapping programs in time using received recording reservation information and prexisting recording reservation information stored in memory. The reservation-receiving recording apparatus sends to the network a recording reservation request including overlapping recording reservation information, if it detects broadcasting time period overlaps, wherein the overlapping recording reservation information causes the overlapping program to be recorded by another recording apparatus connected to the network instead.

Abstract: A non-volatile recording medium for recording a digital audio signal that has been compressed at a compression rate selectable in a predetermined range and block-segmented in a predetermined data length is disclosed, wherein the predetermined data length of which the digital audio data is block-segmented is decided in consideration of the maximum recordable time and the data length of which the digital audio signal is encrypted.

Abstract: An audio apparatus includes a converter having a sound-output mode in which the converter functions as a sound-output device for converting a sound signal into an audio output and a sound-pickup mode in which the converter functions as a sound-pickup device for converting an audio signal into a sound output, a controller switching the converter to the sound-output mode or the sound-pickup mode, an analyzing section analyzing the sound output generated from the converter that is switched to the sound-pickup mode by the controller, and an alarm section generating an alarm signal based on an analysis result from the analyzing section.

Abstract: An apparatus for determining erasability of content data. The apparatus includes: a receiver configured to receive content data to be stored in a first storage medium; a comparator configured to compare a remaining storable capacity of the first storage medium with an amount of the received content data; a determining unit configured to determine whether first data already stored in the first storage medium is re-recordable by determining whether a copy of the first data is retrievable from the second storage medium; and a controller configured to control an erase process for the first data according to the comparison made by the comparator and the determination made by the determining unit.

Abstract: An editing apparatus and method for dividing or combining a data file(s) that is segmented into blocks of a predetermined data length and recorded in a non-volatile memory. An attribute file having a predetermined length is modified so as to reflect such dividing or combining. Such attribute file is recorded in the non-volatile memory.

Abstract: An editing apparatus and method for dividing or combining a data file(s) that is segmented into blocks of a predetermined data length and recorded in a non-volatile memory. An attribute file having a predetermined length is modified so as to reflect such dividing or combining. Such attribute file is recorded in the non-volatile memory.

Abstract: An editing apparatus and method for dividing or combining a data file(s) that is segmented into blocks of a predetermined data length and recorded in a non-volatile memory. An attribute file having a predetermined length is modified so as to reflect such dividing or combining. Such attribute file is recorded in the non-volatile memory.

Abstract: An editing apparatus wherein the editing of content is controlled according to its supply source. Identification information for identifying a content supply source is recorded in a recording medium in correspondence with the content supplied from the content supply source and recorded in the recording medium. When editing of the content is requested by a user, the identification information corresponding to that content is checked. According to the content supply source identified by the identification information, the editing of the content is enabled or disabled.

Abstract: An editing apparatus and method for dividing or combining a data file(s) that is segmented into blocks of a predetermined data length and recorded in a non-volatile memory. An attribute file having a predetermined length is modified so as to reflect such dividing or combining. Such attribute file is recorded in the non-volatile memory.

Abstract: An editing apparatus wherein the editing of content is controlled according to its supply source. Identification information for identifying a content supply source is recorded in a recording medium in correspondence with the content supplied from the content supply source and recorded in a recording medium. When editing of the content is requested by a user, the identification information corresponding to that content is checked. According to the content supply source identified by the identification information, the editing of the content is enabled or disabled.

Abstract: An editing apparatus wherein the editing of content is controlled according to its supply source. Identification information identifying a content supply source is recorded in a recording medium in correspondence with the content supplied from the content supply source and recorded in the recording medium. When editing of the content is requested by a user, the identification information corresponding to that content is checked. According to the content supply source identified by the identification information, the editing content is enabled or disabled.

Abstract: An editing apparatus wherein the editing of content is controlled according to its supply source. Identification information for identifying a content supply source is recorded in a recording medium in correspondence with the content supplied from the content supply source and recorded in the recording medium. When editing of the content is requested by a user, the identification information corresponding to that content is checked. According to the content supply source identified by the identification information, the editing of the content is enabled or disabled.

Abstract: An editing apparatus wherein the editing of content is controlled according to its supply source. Identification information for identifying a content supply source is recorded in a recording medium in correspondence with the content supplied from the content supply source and recorded in the recording medium. When editing of the content is requested by a user, the identification information corresponding to that content is checked. According to the content supply source identified by the identification information, the editing of the content is enabled or disabled.