Wireless receiving subsystem
AssigneesTerk Technologies Corporation, NTL Technologies Inc.
InventorsNeil Terk, George Skahill
Life of this patent
Estimating the term…
Abstract
A wireless receiving subsystem operatively connectable to a broadcast receiver unit having a frequency tuner has an antenna with a feed point, an amplifier located essentially at the feed point, and a transmission line extending from the feed point of the antenna and the amplifier to a signal input of the broadcast receiver unit. The transmission line having a pair of conductors, for example, coaxial conductors. A manually operated switch is disposed in the transmission line for applying a DC voltage across the conductors, while a relay switch is operatively connected to the transmission line for changing a connection state of the amplifier to the transmission line in response to the voltage.
Claims11
A wireless receiving subsystem operatively connectable to a broadcast receiver unit having a frequency tuner, comprising:
- an antenna having a feed point;
- an amplifier located essentially at said feed point;
- a transmission line extending from said feed point of said antenna and said amplifier to a signal input of a broadcast receiver unit, said transmission line having a pair of conductors;
- a first switch disposed in said transmission line for applying a DC voltage across said conductors;
- and
- a second double-throw switch arranged so as to connect said amplifier to said feed point and said signal input upon the applying of said voltage across said conductors by said first switch so that in one mode of operation said feed point is connected indirectly to said transmission line via said amplifier and in another mode of operation said feed point is directly connected to said transmission line, thereby bypassing said amplifier.
A method utilizable with a wireless receiving subsystem including an antenna having a feed point, an amplifier located essentially at said feed point, a transmission line extending from said feed point of said antenna and said amplifier to a signal input of a broadcast receiver unit having a frequency tuner, said method comprising:
- operating a switch to connect said feed point to said signal input via said amplifier and said transmission line;
- operating an actuator operatively connected to said switch, the operating of said actuator placing a DC voltage on said transmission line;
- and
- in response to the the placement of said voltage on said transmission line, automatically operating said switch to connect said feed point directly to said signal input via said transmission line to bypass said amplifier, thereby eliminating possible signal degradation owing to circuit elements of said amplifier.
Dependencies are inferred from the claim text.