Inventor

SHELLHAMMER STEPHEN J

US49 patents

⚠️ This page may combine multiple inventors who share the name “SHELLHAMMER STEPHEN J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SHELLHAMMER STEPHEN J

SYMBOL TECHNOLOGIES INC

Wearable communication system

Omnidirectional reading of two-dimensional symbols

Statistical sampling security methodology for self-scanning checkout system

Method and apparatus for decoding two-dimensional bar code

Coexistence techniques in wireless networks

Method and apparatus for decoding two-dimensional bar code using CCD/CMD camera

Signature capture using electro-optical scanning

Method and apparatus to scan randomly oriented two-dimensional bar code symbols

Bar code scan stitching

Scanner pairing in a bluetooth POS network

Statistical sampling security methodology for self-scanning checkout system

Signaling arrangement for and method of signaling in a wireless local area network

Omnidirectional reading of two-dimensional symbols

Cordless identification security system and method

SHELLHAMMER STEPHEN J

Methods and apparatus for spectrum sensing of signal features in a wireless channel

Methods and apparatuses for communicating in television white space (TVWS) based on TVWS enablement signal

Sensing wireless communications in television frequency bands

Methods and apparatus for providing a wireless expansion network

Methods and apparatuses for low-rate television white space (TVWS) enablement

Variable-length cyclic prefixes in OFDM coaxial communications

Variable-length training fields in coaxial communications

Spectrum sensing of bluetooth using a sequence of energy detection measurements

Method and apparatus for distributed spectrum sensing for wireless communication

QUALCOMM INC

Methods and apparatus for sensing the presence of a transmission signal in a wireless channel

Systems and methods for detecting the presence of a transmission signal in a wireless channel

Method and apparatus for detecting a presence of a signal in a communication channel

Protocols for enabling mode 1 and mode 2 devices in TV white space networks

Transmitter characteristic representation for television white space

Multi-point control protocol proxy architecture in a network with optical and coaxial domains

Physical-layer channel bonding

ABRAHAM SANTOSH PAUL

Managing transmit power for better frequency re-use in TV white space

Managing transmit power for better frequency re-use in TV white space

Method and apparatus for generating various transmission modes for WLAN systems

Protocols for enabling mode 1 and mode 2 devices in TV white space networks

Systems and methods for communication in a white space

SADEK AHMED K

Multichannel dynamic frequency selection

Apparatus and method for spectrum sharing using listen-before-talk with quiet periods

Distributed prioritized contention for spectrum sharing

Distinguishing and communicating between white space devices transmitting ATSC-compatible signals

KIM YONG JIN

Spatio-temporal random voting scheme for cognitive networks

Adjustable transmitter for privacy protection of content broadcast from a transmitting device to a receiving device

WENTINK MAARTEN MENZO

Contact verification signaling

SCHNEIDER GARY

System and method for establishing authenticated wireless connection between mobile unit and host

VERMANI SAMEER

Preamble design for television white space transmissions

GARAVAGLIA ANDREA

Methods and systems for allocating resources in a network with optical and coaxial components

QUAN ZHI

Method and apparatus for spectral sensing

JONES VINCENT K

Generating a search set of television white space channels based on location information

ZHANG WENYI

Applying spurious interference rejection to detect incumbent users of television channels

KANNAN SREERAM

Methods and apparatus for identifying and/or selecting channels