Other

Scientific-atlanta, Inc.

Cisco Technology, Inc.

Thomson Licensing

William T Murphy

James O Farmer

Lamar West

A folded metal dipole antenna includes a balun having two sides, the sides having metal contact end portions for electrical connection to a printed circuit board, two radiating elements, each radiating element in coplanar relationship to a corresponding side of the balun, and an antenna support member having a spacer portion placed between the two sides of the balun. The spacer portion is used to separate one radiating element of the dipole antenna from another radiating element of the dipole antenna.

Low-profile folded metal antenna

A PIFA is formed using a grounding plane in a printed circuit board and a metal chassis or shield. Rather than using the printed circuit board as the separator, an air gap or other gap than the printed circuit board is formed. The transmitter and/or receiver for the antenna may be mounted to the printed circuit board. The feed pin routes signals for the PIFA from the transmitter and/or receiver to the metal chassis or shield while being isolated from the grounding plane that acts as the radiating surface of the PIFA. Standoffs supporting the printed circuit board may be used to short, and another standoff may be used as the feed pin.

Antenna co-located with PCB electronics

Disclosed herein is a system for the variable attenuation of broadband differential signals. An exemplary system of variable attenuation of broadband differential signals includes attenuation devices arranged such that an attenuation device on the positive side of the differential signal has a corresponding attenuation device on the negative side of the differential signal with both of the corresponding attenuation devices on the same semiconductor die.

Variable attenuation of broadband differential signals using PIN diodes

A utility trailer provides a frame defining a forward open bottom work space, a medially rearward deck and a rearwardmost extendable impact attenuator. Hitch structure encloses the forward portion of the work space. The impact attenuator is deployable spacedly rearwardly of the utility trailer in work site mode and provides frictional, mechanical and inertial devices to attenuate a forwardly directed impact. Additional impact attenuators extend between the hitch structure and a vehicle in towing motion. Plural jacks provide work site leveling and positional stability. The utility trailer provides an arch supported hoist to service the workspace and carries signs to provide traffic information and direction.

Utility trailer and safety barrier for street repair

A magnetically resistive exercise device for rehabilitative therapy provides a body with adjustably inclinable planar work surfaces and a curvilinear work surface all formed of magnetically permeable material. A movable exercise piece supportable by or on a user's hand or foot carries at least one magnet for user generated motion over the work surfaces. Therapeutic rehabilitation is provided by frictional resistance to movement of the exercise piece on work surface. The frictional resistance may be adjustably varied by number and strength of magnets carried in the exercise piece and by surface coverings of differing frictional characteristics on the exercise piece, the work surface or both.

Magnetically resistive exercise device for rehabilitative therapy

The invention is directed to an improved scrambler capable of self-calibrating output signals. In one embodiment, the scrambler provides an encoded signal along separate signal pulses. A portion of one signal is made to correspond to a portion of another signal to thereby self-calibrate the signals. Also, portions of the incoming video signal are forced to correspond with internally generated voltage level signals.

Growing community of inventors

Lawrenceville, GA, United States of America

William T Murphy