US5504895A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of managing data structure containing both persistent data and transient data
Assignee: Canon Inc
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Filing: 1993-03-23
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Granted: 1996-04-02
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Expires: 2013-03-23
Abstract
Abstract According to a data management method of managing shared data which is shared by a plurality of processes and data inherent in a process which exists during execution of one particular process and disappears when the process is finished, when each process fetches shared data from a data base into a memory, whether the shared data requires data inherent in the process is checked. Any inherent data of the process is determined, if necessity for that data is determined. The determined inherent data of the process is stored in the memory. A pointer for the inherent data of the process, which is stored in the memory, is stored into the fetched shared data in accordance with attributes inherent in the process requiring the inherent data of the process.
Inventors
- 👤 Takahiro Kurosawa
- 👤 Masahiko Yoshimoto
- 👤 Shigeki Shibayama
- 👤 Ryuhei Uehara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:10
CPC Classifications
G; G06; G06F; G06F9/00; G06F9/06; G06F9/46; G06F9/52
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
127 words
A data management method of managing shared data which is shared by a plurality of processes and data inherent in a process which exists during execution of one particular process and disappears when the process is finished, comprising the steps of: checking, when each process fetches shared data from a data base into a memory, whether the shared data requires data inherent in the process; determining the inherent data of the process if necessity for the data is determined; storing the determined inherent data of the process in the memory; and storing a pointer for the inherent data of the process, which is stored in the memory, into the fetched shared data in accordance with attributes inherent in the process requiring the inherent data of the process.
Claim 2
Dependent Claim
127 words
A data management method of managing shared data which is shared by a plurality of processes and data inherent in a process which exists during execution of one particular process and disappears when the process is finished, comprising the steps of: checking, when each process fetches shared data from a data base into a memory, whether the shared data requires data inherent in the process; determining the inherent data of the process if necessity for the data is determined; storing the determined inherent data of the process in the memory; and storing a pointer for the inherent data of the process, which is stored in the memory, into the fetched shared data in accordance with attributes inherent in the process requiring the inherent data of the process.
Claim 3
Dependent Claim
30 words
A method according to claim 1, wherein the determined inherent data of the process is newly created, and the created inherent data of the process is stored in the memory.
Claim 4
Dependent Claim
38 words
A method according to claim 1, wherein the determined inherent data of the process is searched from existing data in the memory, and, if corresponding data is present, the corresponding data is stored in the memory and shared.
Claim 5
Dependent Claim
32 words
A method according to claim 1, wherein the shared data is graphic information, and the data inherent in the process is a resource identifier of color information for sketching the graphic information.
Claim 6
Dependent Claim
36 words
A method according to claim 1, wherein the shared data is character information, and the data inherent in the process is a resource identifier of font information for obtaining a visible output of the character information.
Claim 7
Dependent Claim
40 words
A method according to claim 1, wherein the shared data is first dynamic image information, and the data inherent in the process is second dynamic image information to be inserted at a certain point into the first dynamic image information.
Claim 8
Dependent Claim
133 words
A data management method of managing shared data which is shared by a plurality of processes and data inherent in a process which exists during execution of one particular process and disappears when the process is finished, comprising the steps of: storing data inherent in each process, which the process requires in relation to shared data in a data base, into a memory; storing an identifier of the inherent data of each process in the shared data in accordance with attributes inherent in the process; reading out, when each process makes reference to the shared data in the data base, the identifier stored in the shared data in accordance with the inherent attributes of the process; and designating necessary data inherent in the process in the memory in accordance with the readout identifier.
Claim 9
Dependent Claim
133 words
A data management method of managing shared data which is shared by a plurality of processes and data inherent in a process which exists during execution of one particular process and disappears when the process is finished, comprising the steps of: storing data inherent in each process, which the process requires in relation to shared data in a data base, into a memory; storing an identifier of the inherent data of each process in the shared data in accordance with attributes inherent in the process; reading out, when each process makes reference to the shared data in the data base, the identifier stored in the shared data in accordance with the inherent attributes of the process; and designating necessary data inherent in the process in the memory in accordance with the readout identifier.
Claim 10
Dependent Claim
32 words
A method according to claim 7, wherein the shared data is graphic information, and the data inherent in the process is a resource identifier of color information for sketching the graphic information.
Claim 11
Dependent Claim
36 words
A method according to claim 7, wherein the shared data is character information, and the data inherent in the process is a resource identifier of font information for obtaining a visible output of the character information.
Claim 12
Dependent Claim
40 words
A method according to claim 7, wherein the shared data is first dynamic image information, and the data inherent in the process is second dynamic image information to be inserted at a certain point into the first dynamic image information.
Claim 13
Dependent Claim
129 words
A data management method of managing shared data which is shared by a plurality of processes and data inherent in a process which exists during execution of one particular process and disappears when the process is finished, comprising the steps of: forming data inherent in each process, which the process requires in relation to shared data in a data base; storing the formed inherent data of each process in a memory; registering an identifier of each process in a one-to-one correspondence with a pointer for the inherent data of the process, which data is stored in the memory, to a registration table for each shared data; and referring to the registration table, when each process makes reference to the shared data, thereby designating the inherent data of the process.
Claim 14
Dependent Claim
129 words
A data management method of managing shared data which is shared by a plurality of processes and data inherent in a process which exists during execution of one particular process and disappears when the process is finished, comprising the steps of: forming data inherent in each process, which the process requires in relation to shared data in a data base; storing the formed inherent data of each process in a memory; registering an identifier of each process in a one-to-one correspondence with a pointer for the inherent data of the process, which data is stored in the memory, to a registration table for each shared data; and referring to the registration table, when each process makes reference to the shared data, thereby designating the inherent data of the process.
Claim 15
Dependent Claim
16 words
A method according to claim 11, wherein the registration tables are stored in the data base.
Claim 16
Dependent Claim
52 words
A method according to claim 12, further comprising the steps of: referring to the registration table, when a certain process changes the shared data, thereby determining other processes making reference to the shared data; and informing the determined processes making reference to the shared data of the change in the shared data.
Claim 17
Dependent Claim
132 words
A data management method of managing shared data which is shared by a plurality of processes and data inherent in a process which exists during execution of one particular process and disappears when the process is finished, comprising the steps of: forming data inherent in each process, which the process requires in relation to shared data in a data base; storing the formed inherent data of each process in a memory; registering an identifier of each process in a one-to-one correspondence with a pointer for the inherent data of the process, which data is stored in the memory, to a registration table common to a plurality of shared data; and referring to the registration table, when each process makes reference to the shared data, thereby designating the inherent data of the process.
Claim 18
Dependent Claim
132 words
A data management method of managing shared data which is shared by a plurality of processes and data inherent in a process which exists during execution of one particular process and disappears when the process is finished, comprising the steps of: forming data inherent in each process, which the process requires in relation to shared data in a data base; storing the formed inherent data of each process in a memory; registering an identifier of each process in a one-to-one correspondence with a pointer for the inherent data of the process, which data is stored in the memory, to a registration table common to a plurality of shared data; and referring to the registration table, when each process makes reference to the shared data, thereby designating the inherent data of the process.
Claim 19
Dependent Claim
16 words
A method according to claim 14, wherein the registration table is stored in the data base.
Claim 20
Dependent Claim
52 words
A method according to claim 14, further comprising the steps of: referring to the registration table, when a certain process changes the shared data, thereby determining other processes making reference to the shared data; and informing the determined processes making reference to the shared data of the change in the shared data.
Claim 21
Dependent Claim
129 words
A data management method of managing shared data which is shared by a plurality of processes and data inherent in a process which exists during execution of one particular process and disappears when the process is finished, comprising the steps of: forming data inherent in each process, which the process requires in relation to shared data in a data base; storing the formed inherent data of each process in a memory; registering an identifier of each process in a one-to-one correspondence with a pointer for the inherent data of the process, which data is stored in the memory, to an inherent registration table of the process; and referring to the registration table, when each process makes reference to the shared data, thereby designating the inherent data of the process.
Claim 22
Dependent Claim
129 words
A data management method of managing shared data which is shared by a plurality of processes and data inherent in a process which exists during execution of one particular process and disappears when the process is finished, comprising the steps of: forming data inherent in each process, which the process requires in relation to shared data in a data base; storing the formed inherent data of each process in a memory; registering an identifier of each process in a one-to-one correspondence with a pointer for the inherent data of the process, which data is stored in the memory, to an inherent registration table of the process; and referring to the registration table, when each process makes reference to the shared data, thereby designating the inherent data of the process.
Claim 23
Dependent Claim
15 words
A method according to claim 17, wherein the registration tables are stored in the memory.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-04-02 | 1999-10-02 | 2000-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-04-02 | 2003-10-02 | 2004-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-04-02 | 2007-10-02 | 2008-04-02 | $7700.00 | Window Closed / Lapsed |