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> 275+ walkie talkie & radio communication patents on cd
275+ walkie talkie & radio communication patents on cd
275+ WALKIE TALKIE & RADIO COMMUNICATION PATENTS ON CD
This CD is loaded with information related to walkie-talkies and radio communications devices; including detailed descriptions and diagrams of their construction, their features, functions, capabilities and use.
2-way radio with silent annunciation
Adjustable service platform apparatus for a gantry crane
Alarm for patient monitor and life support equipment
Alarm for patient monitor and life support equipment system
Alternative energy charger for cellular usage
Apparatus and method for detection frequency hopping patterns embedded in radio frequency noise
Apparatus and method for identifying conductors
Apparatus and method for positioning an object in a building
Apparatus and method for prolonging battery life in a portable telephone having first and second deactivating conditions
Apparatus and method for reducing effect of mobile telephone radiation
Apparatus and method of contention resolution for a plurality of handset units in a cordless telephone system
Apparatus for automating routine communication in a facility
Apparatus for converting radio frequency energy to direct current
Apparatus for detecting a completed electrical circuit and testing an electrical output receptacle
Apparatus for detecting a completed electrical circuit, reverse polarity, ground and ground fault interrupter
Apparatus for radio communication of facsimile
Apparatus for the maintenance of refrigeration equipment
Apparatus for warning of the increase in draught of a floating article, especially a small boat, in a surrounding liquid
APPARATUS FOR, AND METHOD OF MOWING STEEP EMBANKMENTS
Apparatus within a street lamp for remote surveillance
Apparatus within a street lamp for remote surveillance having directional antenna
Arrangement for configuring multiple portable units for communicating with each other in a frequency hopping system
Arrangement for setting out points and straight lines
Arrangement for testing an alarm system and method
Audible tester for alarm circuits
Audio device including an illumination arrangement
AUTOMATIC CIRCUIT FOR RECEPTION OF REDUCED CARRIER SIGNALS
Automobile bi-direction remote control transmission circuitry
Automobile universal dashboard mounting apparatus
Beacon system for roaming cellular stations
Beacon system using cellular digital packet data (CDPD) communication for roaming cellular stations
BOAT BERTHING MONITOR INCORPORATING SONAR AND DOPPLER RADAR TECHNIQUES
Boring tool control using remote locator
Boring tool control using remote locator including a command generation arrangement and method
Car security system and method
Cellular telephone unit capable of automatic interaction with audio services
Cellular telephone unit having multiple memory location command language
Cellular telephone unit with prioritized frequency acquisition
CIRCUIT ARRANGEMENT FOR GENERATING RADIO FREQUENCIES
Citizens band radio receiver with squelch control
Coaxial cable test instruments
Cold weather life saving device
Combination head-protective helmet & communications system
Communication and data entry device
Communication device with mode change softkeys
Communication system especially useful as an incident location reporting security system
Communication system for use in hazardous confined areas
Communication system utilizing radiating transmission line
Completely redundant communication system utilizing radiating transmission line
Control system for a tilt tray sorter
Convertible portable telephone
Cordless communications system
Cordless telephone arranged for operating with multiple portable units in a frequency hopping system
D.C. Stepped-up voltage transformerless battery charger
Decontamination system for removal of hazardous substances
Determination of signal transmission accuracy of a wireless device
Device included in a distance meter system
Digital radio communication station
Digital radio transceiver with encrypted key storage
Direct sequence spread spectrum transmission process, with generation and optimization of sequences
Direct tympanic membrane excitation via vibrationally conductive assembly
Display/memory/control system for forward observer source data
Diversity circuit for magnetic communication system
Dual battery recharger with backup power feature for use in systems having a base unit and battery-powered portable unit
Dual mode communication device
Dual mode mobile phone operating as a two-way radio
Dual resonant antenna circuit for RF tags
Electronic speech control apparatus and methods
Emergency signalling unit and alarm system for rescuing endangered workers
EXPENDABLE SUBMARINE RECEIVING ANTENNA
Face-covering hood with inner liner and vent space
Folding pyramidal structure for protection in case of earthquakes
Fractal antenna ground counterpoise, ground planes, and loading elements
Fractal antenna ground counterpoise, ground planes, and loading elements and microstrip patch antennas with fractal structure
Fractal antennas and fractal resonators
Frequency offset compensation using dotting sequences
Full duplex ultrawide-band communication system and method
Geomatic pole support and foot therefor
Geomatic support having hinged legs with hinge lock
Guide rail for supporting boards
Head wear communication system
Hearing aid with wireless remote processor
High fidelity stereophonic reproduction system
High frequency regenerative direct detector
Hinge mechanism having a sound guide
Ice fishing apparatus and signaling device
Inductive communication system and method
Infrared sentry with voiced radio dispatched alarms
Integrated passive and active communications system
Integrated power source layered with thin film rechargeable batteries, charger, and charge-control
Interactive safety helmet for bicyclists
Intercommunication method between portable units in TDMA cordless telephone system
Interconnect control for automatically connecting a simplex or half-duplex radio network to a standard telephone system
Jacket for displaying information
Keyboard for miniature data processing devices
Leash assembly having pet refuse bag dispenser mechanism
Light assembly and flasher circuit
Light assembly removably attachable to radio and battery assembly
Location dependent user matching system
Low attention recording unit for use by vigorously active recorder
Low power architecture for portable and mobile two-way radios
Low-power random digit generator
Marine VHF antenna system and method
Means for affixing an ornamental sculpture to a sound emitting device
Method and apparatus for accessing a portable personal database as for a hospital environment
METHOD AND APPARATUS FOR BALANCING AN ULTRASONIC DETECTION SYSTEM
Method and apparatus for carrying signals having different frequencies in a space-deployed antenna system
Method and apparatus for identifying game players and game moves
Method and apparatus for providing fair access in a group communication system
Method and apparatus for providing fair access in a group communication system in which users experience differing signaling delays
Method and apparatus for reducing electromagnetic radiation emission
Method and apparatus for remote cueing in the performing arts
Method and apparatus for simulating game accessories
Method and apparatus for transmitting information converted to spread spectrum signal
Method and apparatus for trouble-shooting and irrigation system
METHOD AND APPARATUS TO INTERLOCK A LARRY CAR AND A PUSHER MACHINE
Method and device for radio communication in traffic guidance systems
Method and system for a wireless universal mobile product interface
Method and system for effecting a security system upon multiple portable information devices
Method for communicating handsets
Method for preparing spherical ferrite beads and use thereof
Method for responding to an emergency event
Microphone in a speech communicator
Mobile tracking and positioning system
Modular geomatic pole support system
Monitor circuits for battery charging and other applications
Monitoring or security device and methods
Motion sensing system with adaptive timing for controlling lighting fixtures
Mount and connection system for use with geomatic pole
Mounting plate for mobile communication devices
Multichannel frequency modulator
Multi-conductor identifier with voice communication capability
Multiple satellite locating system
Multiple source battery-powered apparatus
Non-radiative dielectric waveguide circuit positioned between two metal plates which are multi-layered for different sizes of spaces
On-site media and communications trailer
Optical-frequency communications system for aircraft
Personal air conditioning unit
Personal emergency, safety warning system and method
Portable audio communication transceiver device
Portable computer for short-range graphical multiparty communication
Portable self-contained intrusion detector for passenger aircraft
Portable wireless telephone apparatus with use specific power monitoring
Power amplifier saturation prevention method, apparatus, and communication system incorporating the same
Protective breathing mask having a speaking diaphragm for close communication and an electroacoustic transducer system for indirect speech transmission from inside the mask
Protective helmet containing an integral transceiver
Protective sports helmet with speakers, helmet retrofit kit and method
