Battery operated access control card
Battery rental system and apparatus
Battery retainer with integral mechanical shock isolation
Battery saving apparatus and method providing optimum synchroniz
Battery saving arrangement for selectively addressable, portable
Battery saving method for a selective call radio paging receiver
Battery saving method for portable communications receivers
Battery saving method for selective call receivers
Battery-powered, RF-interconnected detector sensor system
Battery-saving arrangement for pagers
Beverage holder with remote control
Bi-directional drive multiplexed display system
Bi-directional protocol
Bicycle locating system
Bidirectional communication apparatus for transmitting/receiving
Bidirectional communication method for CATV system
Bidirectional communication system in a remote control system fo
Bidirectional inductive transmission of data with slave station
Bidirectional remote control apparatus
Bidirectional remote control system using interrupt arbitration