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 Title: |
US6285856:
Wireless two-way communication system between center and user stations
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Aguayo, Jr., Erwin; Columbia, MD
Crowley, Steven J.; Washington, DC
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| Assignee: |
Intrinzix Technologies, Inc., Gaithersburg, MD
other patents from INTRINZIX TECHNOLOGIES, INC. (723873) (approx. 3)
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| Published / Filed: |
2001-09-04
/ 1997-06-26
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| Application Number: |
US1997000883035
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| IPC Code: |
Advanced:
H04N 7/173;
Core:
more...
IPC-7:
H04N 7/173;
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| U.S. Class: |
Current:
725/001;
348/E07.07;
348/E07.071;
Original:
455/005.1;
455/003.1;
348/012;
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| Field of Search: |
348/006,12,13,7
455/3.1,3.2,4.1,4.2,5.1,6.1,14,67.3
358/086
H04N 710, 716, 7173
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| Priority Number: |
| 1997-06-26 |
US1997000883035 |
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| Abstract: |
The present invention is directed to a communication system which can be utilized to complement an existing cable television system in which a central office transmits signals along a coaxial cable to a user unit through a tap. The communication system features a central transmitting/receiving unit for wirelessly transmitting first signals generated at the central office and for receiving second signals. A first response unit which may be connected to the tap will receive the first signals wirelessly transmitted from the central transmitting/receiving unit, and will generate and wirelessly transmit the second signals to be received by the central transmitting/receiving unit. A further second response unit may be connected to the user unit, and the second response unit may generate a third signal to be wirelessly received by the first response. The third signal may be used to control the tap connected to the first response unit. Further, a relay unit may be provided to facilitate transmission between the first and second response units in the central transmitting/receiving unit.
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| Attorney, Agent or Firm: |
Zoltick Technology Law Group, PLLC ;
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| Primary / Asst. Examiners: |
Grant, Chris;
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| INPADOC Legal Status: |
None
Family Legal Status Report
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| Parent Case: |
This is a Continuation of application Ser. No. 08/665,473 filed on Jun. 18, 1996, now U.S. Pat. No. 5,675,372, which is a Continuation of application Ser. No. 08/406,529, filed on Mar. 20, 1995, now U.S. Pat. No. 5,555,015
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| Family: |
Show 3 known family members
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First Claim:
Show all 4 claims |
What is claimed as new and desired to be secured by Letters Patent of the United States is:
1. A communication system for a cable television system in which a central location transmits signals along a coaxial cable to a user unit through a tap, comprising:
- a central receiving unit for wirelessly receiving a first signal;
- a first response unit for generating and wirelessly transmitting the first signal to be received by the central receiving unit; and
- a second response unit connected to the user unit, wherein the second response unit generates a second signal
- wherein the first response unit located upstream of said second response unit, is connected to the tap and receives the second signal.
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| Background / Summary: |
Show background / summary
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 8 U.S. patent(s) that reference this one
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