Remote monitoring system
First Claim
1. A system for monitoring a selected channel signal included within a multiplex of channel signals and transmitting a representation of the selected channel signal to a monitoring location, the system comprising:
- a demultiplexer receiving the multiplex of channel signals and demultiplexing the selected channel signal in response to a channel select command; and
a transmitter unit receiving the demultiplexed channel signal from said demultiplexer, compressing the demultiplexed channel signal, converting the compressed demultiplexed channel signal to a packet signal and transmitting the packet signal to the monitoring location via a telecommunications link.
1 Assignment
0 Petitions
Accused Products
Abstract
A system for monitoring a selected channel signal included within a multiplex of channel signals and for transmitting a representation of the selected channel signal to a monitoring location is disclosed. The system includes a demultiplexer which receives the multiplex of channel signals and demultiplexes the selected channel signal in response to a channel select command. A transmitter unit receives the demultiplexed channel signal from the demultiplexer, compresses the demultiplexed channel signal, converts the compressed demultiplexed channel signal to a packet signal and transmits the packet signal to the monitoring location via a telecommunications link.
62 Citations
22 Claims
-
1. A system for monitoring a selected channel signal included within a multiplex of channel signals and transmitting a representation of the selected channel signal to a monitoring location, the system comprising:
-
a demultiplexer receiving the multiplex of channel signals and demultiplexing the selected channel signal in response to a channel select command; and
a transmitter unit receiving the demultiplexed channel signal from said demultiplexer, compressing the demultiplexed channel signal, converting the compressed demultiplexed channel signal to a packet signal and transmitting the packet signal to the monitoring location via a telecommunications link. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A transmitter unit for receiving a channel signal and transmitting a representation of the channel signal to a monitoring location, said transmitter unit comprising:
-
an encoder unit which compresses the received channel signal to a bit rate, the bit rate being selectable to one of a fixed rate and a variable rate, the variable rate being determined to achieve a constant quality, said encoder converting the compressed channel signal to a packet signal for transmission to the monitoring location via a telecommunication link and adjusting a packet rate of the packet signal to conform to the bit rate of the compressed channel signal; and
an infrared control unit for receiving a demultiplexer command signal from the encoder unit and transmitting the demultiplexer command signal by an infrared signal. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
Specification