Patent JPH1189937A successfully refreshed from Google Patents.
US3740743A
Expired / Lapsed
US
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Character generating apparatus for television titling
Assignee: Thomson CSF Broadcast Inc
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Filing: 1971-03-29
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Granted: 1973-06-19
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Expires: 1991-03-29
Abstract
Abstract An apparatus which receives a sequence of character representative signals and which generates stroke signals that are suitable for controlling a scanned display to present the sequence of characters on the display with proportional spacing. The system includes a timing generator for generating timing signals which are synchronized with the display scan and a recirculating storage for storing the character-representative signals, reading out specified character-representative signals which correspond to a specified character in the sequence and then restoring the specified character signals. The recirculating storage is shifted in response to spacer timing signals generated by a spacer detector which is responsive to the specified character signals and includes means for generating spacer timing signals that are a function of the width of the specified character. A stroke generator which is responsive to the timing signals and the spacer timing signals generates a stroke of the specified character.
Inventors
- 👤 S Baron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:53
CPC Classifications
G; G09; G09G; G09G5/00; G09G5/22; G09G5/24; G09G5/243; B; B41; B41B; B41B19/00; B41B19/01; B41B27/00; B41B27/28
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
151 words
Apparatus for receiving a sequence of characterrepresentative signals and for generating video control signals which are suitable for controlling a scanned display to present the sequence of characters on the display, comprising: timing generator means for generating timing signals which are synchronized with the display scan; recirculating shift register means for storing the characterrepresentative signals, reading out specified characterrepresentative signals which correspond to a specified character in the sequence, and re-storing the specified character-representative signals; spacer detector means responsive to the specified characterrepresentative signals and including means for generating spacer timing signals, the timing of which is a function of the width of the specified character, the recirculating shift register means being shifted in response to the spacer timing signals; and stroke generator means responsive to said timing signals suitable and said specified character-representative signals for generating video control signals for producing a stroke of the specified character on a display.
Claim 2
Dependent Claim
151 words
Apparatus for receiving a sequence of characterrepresentative signals and for generating video control signals which are suitable for controlling a scanned display to present the sequence of characters on the display, comprising: timing generator means for generating timing signals which are synchronized with the display scan; recirculating shift register means for storing the characterrepresentative signals, reading out specified characterrepresentative signals which correspond to a specified character in the sequence, and re-storing the specified character-representative signals; spacer detector means responsive to the specified characterrepresentative signals and including means for generating spacer timing signals, the timing of which is a function of the width of the specified character, the recirculating shift register means being shifted in response to the spacer timing signals; and stroke generator means responsive to said timing signals suitable and said specified character-representative signals for generating video control signals for producing a stroke of the specified character on a display.
Claim 3
Dependent Claim
33 words
Apparatus as defined by claim 1 wHerein said stroke generator means is also responsive to said spacer timing signals which triggers the readout of said video control signals from said stroke generator means.
Claim 4
Dependent Claim
117 words
Apparatus as defined by claim 1 wherein said spacer detector means includes: a character timing pulse generator for generating a plurality of timing pulses each of which is representative of a predetermined timing reference assciated with a predetermined character width; a character width decoder for receiving said specified character signals and for generating a width signal indicative of the width classification into which the specified character falls; a spacer timing multiplexer responsive to said width signal for choosing a selected timing pulse which corresponds to the width of the specified characters; and a sequence controller responsive to said selected timing pulse and to said timing signals from said timing generator means for generating said spacer timing signals.
Claim 5
Dependent Claim
16 words
Apparatus as defined by claim 3 wherein said character timing generator comprises a serial-in-parallel-out shift register.
Claim 6
Dependent Claim
23 words
Apparatus as defined by claim 4 wherein said sequence controller comprises a serial-in-parallel-out shift register which is reset by said selected timing pulse.
Claim 7
Dependent Claim
25 words
Apparatus as defined by claim 5 wherein one of said spacer timing signals is applied to and is operative to reset said character timing generator.
Claim 8
Dependent Claim
32 words
Apparatus as defined by claim 1 wherein said recirculating storage means comprises a plurality of recirculating shift registers, one for each of a predetermined number of rows of characters to be displayed.
Claim 9
Dependent Claim
24 words
Apparatus as defined by claim 7 wherein the scanned display exhibits a television raster scan-line pattern having a plurality of substantially parallel synchronized scanlines.
Claim 10
Dependent Claim
33 words
Apparatus as defined by claim 8 further comprising automatic line counting means responsive to synchronizing signals from said scanned display and operative to count a predetermined number of lines within each display row.
Claim 11
Dependent Claim
24 words
Apparatus as defined by claim 9 wherein said timing generator means includes means for generating a predetermined number of clock pulses during each scanline.
Claim 12
Dependent Claim
29 words
Apparatus as defined in claim 10 further comprising automatic position counting means responsive to said spacer timing signals for counting the number of characters occurring during a given scanline.
Claim 13
Dependent Claim
32 words
Apparatus as defined by claim 11 further comprising manual position counting means responsive to external signals indicative of the position at which a new character is to be entered on the display.
Claim 14
Dependent Claim
44 words
Apparatus as defined by claim 12 further comprising load controlling means responsive to said manual and automatic counting means and operative to generate a load command signal at a time at which a new character is to be entered into said recirculating storage means.
Claim 15
Dependent Claim
32 words
Apparatus as defined by claim 13 further comprising manual row counting means responsive to external signals indicative of the row in which said new character is to be entered on the display.
Claim 16
Dependent Claim
55 words
Apparatus as defined by claim 14 further comprising cursor video generating means responsive to said manual position counter and said manual row counter and operative to generate cursor control signals suitable for controlling said display to present thereon an indication of the position on the display at which a new character is to be entered.
References Cited (Backward Citations)
US3165045A
Cited
US3593310A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |