EP0274382A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Digital audio tape record/play-back system or recording/playing back character data together with digital audio data
Assignee: Casio Computer Co Ltd
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Filing: 1988-01-05
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Granted: —
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Expires: 2008-01-05
Abstract
Abstract In this invention, pack data of a character mode including a character code is generated by a sub-code processor (19). The pack data is continuously recorded on a magnetic tape (12) for a plurality of frames by rotary heads (13a, 13b). When the pack data of the character mode is played back by the rotary heads (13a, 13b), a controller (30) detects the character code included in this pack data and supplies the detected code to a display (33) to display corresponding characters.
Inventors
- 👤 Itsuro Patent Department Develop. Div. Yoshimoto
- 👤 Kuniyoshi Patent Department Develop. Div. Otsuki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 23:43
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/91; H04N5/92; H04N5/9201; H04N5/9206; H04N5/9208; G; G11; G11B; G11B27/00; G11B27/02; G11B27/031; G11B27/036; G11B27/10; G11B27/102; G11B27/107; G11B27/19; G11B27/28; G11B27/30; G11B27/3027; G11B27/3063; G11B27/34; G11B2220/00; G11B2220/90; G11B2220/91; G11B2220/913; G11B27/032; G11B27/22
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
224 words
An apparatus for recording character data together with digital audio data on a magnetic tape by using the rotary head, comprising: a rotating drum provided with said rotary head; drive means, in response to a key operation of key input means, for driving said rotating drum so that said rotary head sequentially records oblique tracks, each of which includes a PCM audio recording area and sub-code recording areas, on said magnetic tape, said PCM audio recording area stores PCM audio data including an error correction code and the digital audio data generated as data complying with an R-DAT (Rotary head type-Digital Audio Tape recorder) format by signal processing means, and said sub-code recording area stores sub-code block data consisting of sub-code ID and pack data generated by sub-code processing means, characterized in that: said key input means (36) has character keys for inputting characters; and said apparatus further has control means (30, 31) for performing a control operation such that character code data corresponding to characters input by operating said character keys (36) is output to said sub-code processing means (19, 28, 29) so as to cause said sub-code processing means (19, 28, 29) to generate pack data of a character mode, and the generated pack data is continuously recorded in said sub-code recording area on said magnetic tape for a plurality of frames.
Claim 2
Independent Claim
224 words
An apparatus for recording character data together with digital audio data on a magnetic tape by using the rotary head, comprising: a rotating drum provided with said rotary head; drive means, in response to a key operation of key input means, for driving said rotating drum so that said rotary head sequentially records oblique tracks, each of which includes a PCM audio recording area and sub-code recording areas, on said magnetic tape, said PCM audio recording area stores PCM audio data including an error correction code and the digital audio data generated as data complying with an R-DAT (Rotary head type-Digital Audio Tape recorder) format by signal processing means, and said sub-code recording area stores sub-code block data consisting of sub-code ID and pack data generated by sub-code processing means, characterized in that: said key input means (36) has character keys for inputting characters; and said apparatus further has control means (30, 31) for performing a control operation such that character code data corresponding to characters input by operating said character keys (36) is output to said sub-code processing means (19, 28, 29) so as to cause said sub-code processing means (19, 28, 29) to generate pack data of a character mode, and the generated pack data is continuously recorded in said sub-code recording area on said magnetic tape for a plurality of frames.
Claim 3
Dependent Claim
116 words
The apparatus according to claim 1, characterized in that the pack data of the character mode generated by said sub-code processing means (19, 28, 29) includes pack data serving as a search code and pack data serving as a text code, the pack data as the search code has only one type including identical character data and is continuously recorded in the sub-code recording area of said magnetic tape (12) for a plurality of frames, the pack data as the text code has a plurality of types including different character data, and each of the plurality of pack data is recorded in the sub-code recording area of said magnetic tape (12) for a plurality of frames.
Claim 4
Dependent Claim
44 words
The apparatus according to claim 2, characterized in that the number of character data included in the pack data as the search code is equal to that of the character data included in each of the plurality of pack data as the text code.
Claim 5
Dependent Claim
42 words
The apparatus according to claim 2, characterized in that the plurality of pack data as the text code include the character code data (CHA) and address data (ADR), and the address data (ADR) in the plurality of pack data have serial numbers.
Claim 6
Dependent Claim
29 words
The apparatus according to claim 2, characterized in that the pack data of the character mode includes data (S) for distinguishing between the search code and the text code.
Claim 7
Dependent Claim
34 words
The apparatus according to claim 1, characterized in that the pack data of the character mode includes character code data (CHA) and data indicating a code standard (FMT) of the character code data (CHA).
Claim 8
Dependent Claim
23 words
The apparatus according to claim 1, characterized in that the pack data of the character mode includes data (ITEM) indicating the character mode.
Claim 9
Dependent Claim
48 words
The apparatus according to claim 1, characterized in that when the pack data of the character mode is to be recorded, said control means (30, 31) performs a control operation such that only the sub-code recording area of said magnetic tape (12) is set in a recording state.
Claim 10
Dependent Claim
207 words
The apparatus according to claim 1, characterized in that said control means (19, 28, 29) sets a first predetermined number of input characters of a character string input by the character keys of said key input means (36) for a search code, and the entire character string for a text code, and outputs character code data corresponding to the characters set for the search code and character code data corresponding to the character string set for the text code to said sub-code processing means (19, 28, 29); said sub-code processing means (19, 28, 29) generates one type of pack data of a character mode including the input character code data for the search code, and generates a plurality of types of pack data of a character mode including the input character code data for the text code under the control of said control means (30, 31); and said control means (19, 28, 29) performs a control operation such that the pack data as the search code is continuously recorded in the sub-code recording area of said magnetic tape (12) for a plurality of frames, and each of the plurality of types of pack data as the text code is continuously recorded therein for a plurality of frames.
Claim 11
Dependent Claim
100 words
The apparatus according to claim 9, characterized in that PCM audio data for a plurality of programs are recorded on said magnetic tape (12), and a sub-code ID including a start ID (S-ID) is recorded in the sub-code recording area of a starting portion of each program for a plurality of frames; and said control means (30, 31) performs a control operation such that the pack data as the search code and the pack data as the text code are recorded in the sub-code recording area of said magnetic tape (12) in which the start ID (S-ID) has been recorded.
Claim 12
Dependent Claim
71 words
The apparatus according to claim 10, characterized in that said control means (30, 31) performs a control operation such that the pack data as the text code is recorded in the sub-code recording area of said magnetic tape (12) for a plurality of frames and the pack data as the search code is successively recorded for a plurality of frames on which sub-code ID including a start ID (S-ID) is recorded.
Claim 13
Dependent Claim
213 words
The apparatus according to claim 1, characterized in that said apparatus further has play-back means (22, 23, 24) for decomposing and outputting the PCM audio data and the sub-code block data from a play-back signal played back by said rotary head (13a, 13b); said signal processing means (16) receives the PCM audio data from said play-back means (22, 23, 24), performs error correction processing, and outputs digital audio data; said sub-code processing means (19, 28, 29) receives the sub-code block data from said play-back means (22, 23, 24) and stores the sub-code ID and the pack data included in the sub-code block data; said key input means (36) further has a play-back key; and said control means (30, 31) controls said mechanism drive means (35) in response to operation of said play-back key of said key input means (36) so that said magnetic tape (12) and said rotating drum (11) are set in a corresponding drive state, and detects that the pack data of the character mode is stored in said sub-code processing means (19, 28, 29) and supplies the character code data in the pack data of the character mode to a display device (32, 33) so as to cause said display device to display characters corresponding to the character code data.
Claim 14
Dependent Claim
233 words
The apparatus according to claim 12, characterized in that the pack data of the character mode includes pack data serving as a search code and pack data serving as a text code, the pack data as the search code has only one type including identical character data and is continuously recorded in the sub-code recording area of said magnetic tape (12) for a plurality of frames, the pack data as the text code has a plurality of types including different character data, and each of the plurality of pack data is recorded in the sub-code recording area of said magnetic tape (12) for a plurality of frames; said key input means (36) further has a high-speed travel key; and said control means (30, 31) performs a control operation such that said rotary head (13a, 13b) and said rotating drum (11) are set in a rated-speed play-back state in response to operation of said play-back key of said key input means (36) and in a high-speed play-back state upon operation of said high-speed travel key, and receives the pack data as the text code in the rated-speed play-back mode and the pack data as the search code in the high-speed play-back mode to supply the character code data included in these pack data to said display device (32, 33) to cause said display device to display the characters corresponding to the character code data.
Claim 15
Dependent Claim
94 words
The apparatus according to claim 13, characterized in that the plurality of pack data as the text code include the character code data and address data, and the address data in the plurality of pack data have serial numbers; and said control means (30, 31) sorts the character code data included in the pack data as the text code, in the order indicated by the address data, and sends the data to said display device (32, 33) so as to cause said display device to display the characters corresponding to the character code data.
Claim 16
Dependent Claim
159 words
The apparatus according to claim 12, characterized in that PCM audio data for a plurality of programs are recorded on said magnetic tape (12), and the pack data of the character mode, having identical contents, are continuously recorded in the sub-code recording areas of each program for a plurality of frames; said key input means (36) has a search key for selecting a desired program; and said control means (30, 31) controls said mechanism drive means (35) to be in the high-speed play-back state in response to operation of said search key of said key input means, and compares the character code data included in the pack data of the character mode with characters input by the character keys of said key input means (36) so as to play back a program, in which the pack data of the character mode including the character code data which coincides with the input characters is recorded in the sub-code recording area.
Claim 17
Dependent Claim
112 words
The apparatus according to claim 15, characterized in that the pack data of the character mode includes character code data corresponding to a plurality of characters; and when the number of characters input by said character keys of said key input means (36) is smaller than the number of characters indicated by the character code data included in the pack data of the character mode, said control means (30, 31) compares the input characters with the character code data corresponding in number thereto, so as to play back a program, in which the pack mode of the character mode for which a coincidence is detected is recorded in the sub-code recording area.
Claim 18
Dependent Claim
35 words
The apparatus according to claim 16, characterized in that said control means (30, 31) sets a high-speed play-back mode after a play-back operation of a selected program is completed, thus continuing the program selection operation.
References Cited (Backward Citations)
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