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US 6,715,045 B2Granted
Host cache for haptic feedback effects
AssigneeImmersion Corporation
InventorsAdam C. Braun, Jonathan L. Beamer, Dean C. Chang
Life of this patent
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Abstract
Methods and apparatus for efficient management of memory in a haptic feedback system including a host computer and a haptic feedback device. A representation of device memory is maintained on the host computer to allow the host computer knowledge of force effects stored in the device memory. A host cache for force effects is provided to allow larger numbers of force effects to be created for the device, where force effects not able to fit in device memory can be stored in the host cache.
Claims20
A method comprising:
- creating a representation of a device memory in a computer memory;
- storing a force effect in a cache allocated in said computer memory;
- determining whether said device memory can store said force effect by examining said representation of said device memory;
- and
- sending said force effect to said device memory.
2 more elements
A method comprising:
- receiving a force effect create command;
- sending a force effect data corresponding to said force effect create command to a device memory if said device memory comprises a sufficient space to store said particular force effect data;
- and
- storing said force effect data in a cache allocated in a computer memory if said device memory does not comprise said sufficient space.
1 more element
A system comprising:
- a haptic feedback device comprising a device memory;
- and
- a computer in communication with said haptic feedback device, said computer comprising system memory in which a cache is implemented, wherein said cache stores a force effect data if said device memory does not have said sufficient space.
Dependencies are inferred from the claim text.