HEUNG K TSANG
Occupational Therapy at Randon Ter, Lake Mary, FL
License number
Florida 4971
Issued Date
Feb 13, 1995
Effective Date
Jan 21, 2015
Expiration Date
Feb 28, 2019
Category
Health Care
Type
Occupational Therapist
Address
Address
491 Randon Ter, Lake Mary, FL 32746
Phone
(407) 324-3486
Professional information
Toneless Telemetry In A Wireless System
US Patent:
2005004, Mar 3, 2005
Filed:
Aug 12, 2004
Appl. No.:
10/918652
Inventors:
Danny Ammar - Windermere FL, US
Heung Tsang - Lake Mary FL, US
Heung Tsang - Lake Mary FL, US
International Classification:
H04B007/005
US Classification:
455502000
Abstract:
The present invention is directed to indoor/outdoor wireless communication systems and methods. Communications between an indoor unit and outdoor unit do not require telemetry tones. The input DC voltage level from the indoor unit is reduced to a level below the normal operating range for the outdoor unit. This is recognized by the outdoor unit as a signal to start receiving telemetry data, which is sent from the indoor unit to the outdoor unit by modulating the transmit signal.