US4630198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intelligent stand-alone printfile buffer with paging control
Assignee: Individual
•
Filing: 1984-02-21
•
Granted: 1986-12-16
•
Expires: 2004-02-21
Abstract
Abstract An intelligent, stand alone print buffer having switch-selectable series and parallel input and output ports. Data transfers between the input and output ports occur under microprocessor control. Control panel switches initiate control functions such as clearing the buffer memory, starting a print cycle, holding further input from the input port, and pausing further output to the output port. Page skipping and page reprinting are controlled by the microprocessor which scans the data stored in the buffer's internal memory to locate page boundries in accordance with operator entered page definition data.
Inventors
- 👤 Houng I-Yuan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:29
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/12; G06F3/1293; G06F3/1295; G06F3/1201; G06F3/1202; G06F3/1203; G06F3/1218; G06F3/122; G06F3/1223; G06F3/1237; G06F3/126; G06F3/1278; G06F3/1284
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
121 words
A stand-alone file buffer comprising, in combination: an import port adapted to receive data from a computer; a user memory adapted to store data received via said input port; an output port adapted to supply data stored in said user memory to a utilization device; control means for establishing page definition information, said page definition information including an operator selectable line-per-page value; and means for scanning the data in said user memory to locate page boundaries within said data in accordance with said page definition information, said means for scanning including means for counting lines of print within said data and means for establishing each of said page boundaries when the lines counted by said counting means equals said line-per-page value.
Claim 2
Dependent Claim
121 words
A stand-alone file buffer comprising, in combination: an import port adapted to receive data from a computer; a user memory adapted to store data received via said input port; an output port adapted to supply data stored in said user memory to a utilization device; control means for establishing page definition information, said page definition information including an operator selectable line-per-page value; and means for scanning the data in said user memory to locate page boundaries within said data in accordance with said page definition information, said means for scanning including means for counting lines of print within said data and means for establishing each of said page boundaries when the lines counted by said counting means equals said line-per-page value.
Claim 3
Dependent Claim
26 words
A stand-alone buffer as set forth in claim 1 wherein said means for counting lines of print includes means for detecting linefeed characters in said data.
Claim 4
Dependent Claim
27 words
A stand-alone file buffer as set forth in claim 1 wherein said means for counting lines of print includes means for detecting carriage-return characters in said data.
Claim 5
Dependent Claim
36 words
A stand-alone buffer as set forth in claim 1 including page control means for terminating the flow of data via said output port and resuming said flow beginning with a selected one of said page boundaries.
Claim 6
Dependent Claim
26 words
A stand-alone buffer as set forth in claim 1 wherein said means for scanning includes means for detecting the presence of formfeed characters in said data.
References Cited (Backward Citations)
US4390945A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-12-15 | 1990-06-16 | 1990-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-15 | 1994-06-16 | 1994-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-15 | 1998-06-16 | 1998-12-16 | $7700.00 | Window Closed / Lapsed |