(under the class definition) Subject matter comprising means or steps for preventing access to a shared resource of a computer or digital data processing system.
(1) Note. Processes and apparatus for locking access for general utility are classified herein. Processes and apparatus for locking access to buses are classified elsewhere. See the SEE OR SEARCH THIS CLASS, SUBCLASS notes below. Processes and apparatus for locking access to memories are classified elsewhere. See the SEE OR SEARCH CLASS notes below.
(2)
Note. Processes and apparatus for regulating simultaneous access to a computer network are classified elsewhere. See the SEE OR SEARCH CLASS notes below.
(3) Note. Processes and apparatus for furthering the security of computers and digital data processing systems, even if the processes and apparatus involve access locking, are classified in this class elsewhere. See the SEE OR SEARCH CLASS notes below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
108, for bus locking.
SEE OR SEARCH CLASS 340, Communications: Electrical,
825.3+, for security (e.g., authorization) in selective communication systems.
380, Cryptography,
4, for stored digital data access or copy prevention in combination with data encryption; e.g., software program protection or computer virus detection in combination with data encryption.
455, Telecommunications,
26.1, for subject matter which blocks access to a signal source or otherwise limits usage of modulated carrier equipment.
711, Electrical Computers and Digital Processing Systems: Memory,
163+, for limiting access to memories.
713, Electrical Computers and Digital Data Processing Systems: Support,
200+, for furthering security in computers and digital data processing systems.
714, Error Detection/Correction and Fault Detection/Recovery, 763, for memory access block coding, and subclass 805 for storage accessing error/fault detection techniques.
