Patent US3921135A successfully refreshed from Google Patents.
US3921135A
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Apparatus and method for memorizing dot patterns in a memory system
Assignee: Fujitsu Ltd
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Filing: 1973-04-17
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Granted: 1975-11-18
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Expires: 1993-04-17
Abstract
Abstract This invention relates to apparatus and method for memorizing dot patterns in a memory system, and particulary to a method for memorizing a dot pattern of a character or numeral in a memory system comprising the steps of, first dividing a character or numeral into large meshes for obtaining a first data train composed of ''''on'''' and ''''off'''' dots, thereafter dividing each of only the on dots obtained by the first dividing into smaller meshes for obtaining a second data train composed of on and off dots, and storing the first and second data trains in a memory system.
Inventors
- 👤 Takeshi Komaru
- 👤 Toshio Shimamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:39
CPC Classifications
G; G09; G09G; G09G1/00; G09G1/06; G09G1/14; G09G1/18; H; H04; H04N; H04N1/00; H04N1/41; H04N1/411; H04N1/413; H04N1/415
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
289 words
Apparatus for decompressing data representative of an image divided into (M/m X N/n) relatively large area portions, each large area portion assuming a first or second state dependent respectively upon the presence or absence of the image therein, each of said relatively large area portions of a first state being divided into (m X n) smaller portions, each of the smaller portions assuming one of said first and second states, dependent respectively upon the presence or absence of the image therein, said apparatus comprising: means for providing a sequence of signals indicative of the first and second states of the relatively large portions and first and second states of the relatively smaller portions of each large portion of the first state; bistable means responsive to those signals representative of the large portions of the first state to provide a first output and to the large portions of the second state to provide a second output; storage means for receiving and storing in a defined, expanded manner signals indicative of whether each of the (M X N) small portions is in the first or second state; first counter means responsive to the first output of said bistable means for facilitating the application of (m X n) signals from said providing means indicative of the first and second states of the smaller portions of a lArger portion indicated by said bistable means to be of a first state, to said storage means; and second counter means responsive to the second output of said bistable means for applying (m X n) signals indicative of the second state to said storage means, whereby signals indicative of the state of each of the (M X N) smaller portions is stored in said storage means.
Claim 2
Dependent Claim
289 words
Apparatus for decompressing data representative of an image divided into (M/m X N/n) relatively large area portions, each large area portion assuming a first or second state dependent respectively upon the presence or absence of the image therein, each of said relatively large area portions of a first state being divided into (m X n) smaller portions, each of the smaller portions assuming one of said first and second states, dependent respectively upon the presence or absence of the image therein, said apparatus comprising: means for providing a sequence of signals indicative of the first and second states of the relatively large portions and first and second states of the relatively smaller portions of each large portion of the first state; bistable means responsive to those signals representative of the large portions of the first state to provide a first output and to the large portions of the second state to provide a second output; storage means for receiving and storing in a defined, expanded manner signals indicative of whether each of the (M X N) small portions is in the first or second state; first counter means responsive to the first output of said bistable means for facilitating the application of (m X n) signals from said providing means indicative of the first and second states of the smaller portions of a lArger portion indicated by said bistable means to be of a first state, to said storage means; and second counter means responsive to the second output of said bistable means for applying (m X n) signals indicative of the second state to said storage means, whereby signals indicative of the state of each of the (M X N) smaller portions is stored in said storage means.
Claim 3
Dependent Claim
77 words
Apparatus as claimed in claim 1, wherein said providing means provides a sequence of signals in an order corresponding to that in which the compressed signals are derived from the image; and there is further provided address means associated with said storage means for applying the signals as derived from said providing means and said second counter means to said storage means so that these signals are stored in said storage means in a defined, decompressed manner.
Claim 4
Dependent Claim
110 words
Apparatus as claimed in claim 1, wherein said providing means provides a sequence of signals indicative of the image arranged in a plurality of M/m lines, each having N/n large area portions; and there is further provided address means including third counting means for counting an N number of the signals corresponding to the storage of signals of a line of the small area portions into a line portion of said storage means, and fourth counter means responsive to a count of said third counter means equal to N for storing the next line of signals for the small area portions into the next line portion of said storage means.
Claim 5
Dependent Claim
15 words
Apparatus for decompressing compressed coded data representing an image within a field made up of
Claim 6
Dependent Claim
15 words
Apparatus for decompressing compressed coded data representing an image within a field made up of
Claim 7
Dependent Claim
82 words
Apparatus as claimed in claim 4, wherein selected signal groups include a manifestation that its large area is an independent point in the image, and there further is included third memory means responsive to the presence of the manifestation to be disposed from its second state indicative of the absence of the manifestation to its first state, and gate means responsive to the first state of said third memory means for preventing the application of the manifestation to said image memory means.
Claim 8
Dependent Claim
85 words
The apparatus as claimed in claim 5, wherein there is included a first counter actuated by the disposal of said third memory means to its first state to initiate a count to a given number of signals comprising the manifestation, and a second counter responsive to a count of said first counter equal to the given number to initiate the generation of a (m X n) number of signals whereby the second signals of the independent signal group are applied to said image memory means.
Claim 9
Dependent Claim
41 words
Apparatus as claimed in claim 6, wherein said second counter upon reaching its predetermined count applies a signal to said third memory means to dispose said third memory means to its second state in preparation for processing the next signal group.
Claim 10
Dependent Claim
33 words
Apparatus as claimed in claim 7, wherein said third memory means in its second state applies a signal to said first memory means to dispose said first memory means in its second state.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |