PATENT CLAIM ANALYSIS

Application Number: 15908888
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-09
Patent Classification: ["711", "163000"]

Abstract:
Memory space management and memory access control method and apparatus are provided. The method includes: upon receiving an access request, acquiring an access address and an accessor identifier in the access request; checking a current state of a memory space pointed by the access address to obtain a check result, wherein the state of the memory space includes a first state and a second state; determining whether the accessor identifier belongs to an access permission set among a plurality of access permission sets that corresponds to the check result; and generating an instruction according to the check result, wherein the instruction indicates whether or not the accessor is permitted to access the memory space. With the above method, the invention reduces resource waste and system costs.

Claim (Index 18):
The memory access control apparatus according to  claim 17 , wherein when the first control bit is a first word, it means that the memory space is in the first state; when the first control bit is a second word, it means that the memory space is in the second state; when the second control bit is a third word, it means that the memory space pointed by the access address belongs to the security memory region of the predetermined memory region in the system memory; when the second control bit is a fourth word, it means that the memory space pointed by the access address does not belong to the security memory region of the predetermined memory region in the system memory; the four protection groups are respectively a third protection group, a fourth protection group, a fifth protection group and a sixth protection group; if the check result indicates that the first control bit is the first word and the second control bit is the third word, the determining unit selects the third protection group; if the check result indicates that the first control bit is the second word and the second control bit is the third word, the determining unit selects the fourth protection group; if the check result indicates that the first control bit is the first word and the second control bit is the fourth word, the determining unit selects the fifth protection group; if the check result indicates that the first control bit is the second word and the second control bit is the fourth word, the determining unit selects the sixth protection group; if the search result of the third protection group, the fourth protection group, the fifth protection group or the sixth protection group is yes, the determination signal permits accessing to the memory space pointed by the access address.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 90.0
- Lexical Diversity: 2.04478
- Patent Class: 711.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15559858', '14663760', '14762229', '10714561', '12258685']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4848343166969442
- 35 USC 102 Novelty (BERT): 0.4887240692323856
- Combined Prediction Score: 0.4852232919504883
- Mean Citation Score: 175.21223
- Max Citation Score: 184.90245
- Similarity Product: 131.96513139658572

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 0

Dataset: test