Apparatus and method for detecting leaving of cellular...

Apparatus and method for use in identifying presence of...

Apparatus for playing of synchronized video between wireless...

Audible warning prior to losing cell call in progress

Beacon group merging

Channel mode converting method of a wireless portable...

Collaboratively locating disconnected clients and rogue...

Collaboratively locating disconnected clients and rogue...

Collaboratively locating disconnected clients and rogue...

Communication device providing out-of-range battery saving...

Cordless communication system for a portable computer modem

Dedicated short-range communication mobile device for...

Device for prohibiting unauthorized use of electronic devices

Digital cordless telephone device which gives a warning to...

Distance alarm and notification device for use with mobile...

Electronic apparatus and service providing method used in...

Enhanced wireless handset, including direct...

Imminent change warning

Imminent change warning

Imminent change warning