US5457544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Facsimile device with memory control means for storing image data to be transmitted and image data received
Assignee: Canon Inc
•
Filing: 1994-07-25
•
Granted: 1995-10-10
•
Expires: 2014-07-25
Abstract
Abstract A facsimile device comprises read means for reading a document; image memory means for storing image information of the document read by the read means; transmission means for transmitting the image information of the image memory means; and control means for controlling the reading of the document, the storing of the read image information and the reading of the stored image information and parallelly executing the storing and the transmission of the image information. The control means reads the document asynchronously with the transmission of the image information until the amount of image information in the image memory means reaches a predetermined amount.
Inventors
- 👤 Masato Ochiai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:43
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/32358; H04N1/32363; H04N1/32368; H04N1/32443; H04N1/32448; H04N2201/00; H04N2201/32; H04N2201/3285; H04N2201/3288; H04N2201/329
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
155 words
A facsimile device comprising: input means for inputting image data representing a document image, the image data being divided into blocks, each containing a predetermined amount of data; receiving means for receiving image data, the image data being divided into blocks, each containing a predetermined amount of data; memory means for storing image data; memory control means for writing/reading the image data input through said input means and the image data received by said receiving means into/from said memory means for each block; and transmitting means for transmitting onto a line the image data read from said memory means, block by block, by said memory control means, wherein during reception of data by said receiving means, said memory control means reserves a predetermined number of empty blocks in said memory means, to accommodate image data being received, and stores the image data input through said input means in a remaining area of said memory means.
Claim 2
Dependent Claim
155 words
A facsimile device comprising: input means for inputting image data representing a document image, the image data being divided into blocks, each containing a predetermined amount of data; receiving means for receiving image data, the image data being divided into blocks, each containing a predetermined amount of data; memory means for storing image data; memory control means for writing/reading the image data input through said input means and the image data received by said receiving means into/from said memory means for each block; and transmitting means for transmitting onto a line the image data read from said memory means, block by block, by said memory control means, wherein during reception of data by said receiving means, said memory control means reserves a predetermined number of empty blocks in said memory means, to accommodate image data being received, and stores the image data input through said input means in a remaining area of said memory means.
Claim 3
Dependent Claim
25 words
A facsimile device according to claim 1, wherein said memory control means stores the image data received by said receiving means in the reserved blocks.
Claim 4
Dependent Claim
107 words
A facsimile device according to claim 1, wherein said input means includes reading means, for reading a document, and image and encoding means, for encoding image data obtained by said reading means, and wherein said memory control means, which controls image data input through said input means and image data received by said receiving means, causes said encoding means to encode the image data and store the encoded image data in said memory means, after a reading resolution of said reading means and an encoding method to be used by said encoding means are determined on the basis of a procedure signal received by said receiving means.
References Cited (Backward Citations)
JPS57148467A
Cited
JPS59185469A
Cited
US4743975A
Cited
US4841373A
Cited
EP0337772A2
Cited
US5119210A
Cited
JPH0370359A
Cited
EP0430452A2
Cited
US5142667A
Cited
US5229866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-10-09 | 1999-04-10 | 1999-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-09 | 2003-04-10 | 2003-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-09 | 2007-04-10 | 2007-10-10 | $7700.00 | Window Closed / Lapsed |