Patent US3707902A successfully refreshed from Google Patents.
US3707902A
Expired / Lapsed
US
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Phototypesetting equipment
Assignee: Individual
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Filing: 1970-08-10
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Granted: 1973-01-02
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Expires: 1990-08-10
Abstract
Abstract Characters on a movable character vehicle are identified by a plurality of character readers (flash lamps and TV camera tubes) spaced around the vehicle, and character signals are stored in short term storage registers for each reader. A character imput, such as a tape or the like, is read in advance and compared with the characters in the short term storate registers for coincidence. When coincidence occurs, a comparator cancels the stored signal in the coinciding register and transfers the character to an address store register capable of storing one or more characters, where it is retained until called for by the phototypesetter. The apparatus speeds-up ''''read-off'''' time by reading the imput sequence in advance of the output by one or more characters, and by identifying a chosen character and predicting its arrival time.
Inventors
- 👤 H Purdy
- 👤 R Mcintosh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:12
CPC Classifications
B; B41; B41B; B41B27/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
188 words
Phototypesetting equipment comprising a continuously moving character carrier means having a font of type characters thereon; marker means associated with said carrier means to mark the position of each character; a plurality of camera stations located along the path of motion of said characters; each camera station having access to the entire font and each comprising a photo-electric storage means, a flash unit for creating a light image of a selected character on said storage means, and means for transmitting electrical signals representative of the store image; means for selecting a sequence of characters to make up lines of text; distributor means responsive to the status of each of said storage means and to said character selecting means for distributing the character selection information to the respective camera stations; switching means receiving the signals from each of said camera stations and operative to pass the signals in predetermined order; and control means responsive to said selecting means and to each of said camera stations and controlling said switching means to maintain the order to the signals passed by said switching means corresponding to the order of character selection.
Claim 2
Dependent Claim
188 words
Phototypesetting equipment comprising a continuously moving character carrier means having a font of type characters thereon; marker means associated with said carrier means to mark the position of each character; a plurality of camera stations located along the path of motion of said characters; each camera station having access to the entire font and each comprising a photo-electric storage means, a flash unit for creating a light image of a selected character on said storage means, and means for transmitting electrical signals representative of the store image; means for selecting a sequence of characters to make up lines of text; distributor means responsive to the status of each of said storage means and to said character selecting means for distributing the character selection information to the respective camera stations; switching means receiving the signals from each of said camera stations and operative to pass the signals in predetermined order; and control means responsive to said selecting means and to each of said camera stations and controlling said switching means to maintain the order to the signals passed by said switching means corresponding to the order of character selection.
Claim 3
Dependent Claim
69 words
Equipment as in claim 1 wherein each said camera station includes pulse generating means responsive to said marker means and a counter driven by said pulse generating means to count the flow of characters past the associated storage means; said character selecting means having simultaneous outputs to each of said camera stations whereby a selected character will be recorded at the camera station past which that character moves next.
Claim 4
Dependent Claim
68 words
Equipment as defined in claim 2, wherein each camera station includes as part of said distributor means a comparator connected to the associated counter and to said selecting means; said comparator operating to actuate the flash unit of the associated camera station to record the selected character and also to send a unique code to said control means identifying the camera station at Which the character is stored.
Claim 5
Dependent Claim
63 words
Equipment as defined in claim 3, wherein said control means includes a register receiving the codes from said camera stations in the order in which the characters are selected and stored temporarily at said camera stations, said register being connected to operate said switching means in the correct sequence to pass said character signals in the selected order from the several camera stations.
Claim 6
Dependent Claim
22 words
Equipment as defined in claim 1 wherein said character carrier means is a rotating font member common to all the camera stations.
References Cited (Backward Citations)
US3162105A
Cited
US3464331A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |