Qualcomm Incorporated

Alacritech, Inc.

Netapp, Inc.

Amod Bodas

Millind Mittal

Srinivas Katar

Ravi H Gidvani

Farrukh Usmani

Ramaswamy Venkateshwaran

Tarun Kumar Tripathy

Hang Su

Kaushik L Popat

Mehul Kharidia

J Sukarno Mertoguno

Stephen Benelisha

Brent Miller

Barnaby Falls

Chien Nguyen

Method, systems, and apparatuses are described for wireless communications. More particularly, a wireless station may connect to a wireless network using a first radio frequency (RF) band and detect a signal strength of the first RF band is greater than a roaming threshold. The wireless station may perform a plurality of scans for support by the wireless network of a second RF band in response to the detected signal strength. Each scan may occur when the signal strength of the first RF band is greater than the roaming threshold. The wireless station may selectively connect to the wireless network using the second RF band based at least in part on the scanning and a throughput supported by the wireless network over the second RF band. The first RF band may be a 2.4 GHz band and the second RF band may be a 5 GHz band.

Band preference in wireless networks

Techniques and systems, including computer program products, for providing timely file change notification. In general, in one implementation, the technique includes a recorder that records changes to one or more files in a file system and a broker that receives and responds to change notification request from external applications. The recording of changes can be system- initiated and can pertain to changes occurring anywhere in the file system. The recorder and broker can perform asynchronously from each other and can persist independently of the external applications.

Active file change notification

A copy instruction executed by a functional-level instruction-set computing (FLIC) processor copies a variable-length data block from one resource to another resource through a cross-bar switch. Resources include general-purpose registers, input, output, and execution buffers, DRAM, SRAM, and other memory. A copy-with-validate instruction has an operand pointing to a first rule in an immediate rule table. The first rule controls validation of a first data-item in the data being copied. Validation includes range and equality checking of the data-item. The value of the data-item or the current offset can be written to a register. A format field in the rule indicates the size of the data-item, or the size is read from the data-item for variable-size formats. The current offset is incremented by the size. The next data-item is validated by a next rule, and other rules in the immediate table control validation of other data-items in the data block.

Native copy instruction for file-access processor with copy-rule-based validation

A processor natively executes lookup instructions. The lookup instruction is decoded to determine which general-purpose register (GPR) contains a pointer to a lookup key in a buffer. A variable-length key is read from the buffer and hashed to generate an index into a first-level cache and a hashed tag. An address of a bucket of entries for the index is generated and tags from these entries are read and compared to the hashed tag. When an entry matches the hashed tag, a second-level entry is read. A stored key from the second-level entry is compared to the input key to determine a match. The addresses of the matching second-level and first-level entries are written to GPR's specified by operands decoded from the lookup instruction. When the key or entry data is long, the second-level entry also contains a pointer to a key extension or data extension in a third-level cache.

Native lookup instruction for file-access processor searching a three-level lookup cache for variable-length keys

Growing community of inventors

Cupertino, CA, United States of America

Amod Bodas