Patents

These are my US patents, numbering thirty-two at this time.  I have a few foreign patents but I don't track those since they're the same as the US patents. 

7,173,944 "Modulation switching for DSL signal transmission” (continuation of 6,151,335)

7,110,720 “Local area internet radio receiver/transmitter”

6,975,585 "Slotted synchronous frequency division multiplexing for multi-drop networks"

6,754,233 “Method and apparatus for transmitting data between a central site and multiple data subscribers”

6,731,653 “Method and apparatus for handling multiple data subscribers at a central site”

6,724,870 “System and method for distributing enhanced telephony service to customer premises equipment”

6,711,138 “Digital subscriber line/home phoneline network router”

6,694,125 “System and method for extending the range of a base unit”

6,686,755 “Methods for wireless testing of integrated circuits”

6,683,888 “Method and apparatus for establishing modem connections over a packet network”

6,678,375  “Efficient use of wire for data communication system”

6,647,109 “Network telephony”

6,546,098 "System and method for distributing enhanced telephony service to customer premises equipment"

6,531,982 “Field unit for use in a GPS system”

6,493,355 “Method and apparatus for the flexible use of speech coding in a data communication network”

6,424,441 “Method and apparatus for sensing an audio signal that is sensitive to the audio signal and insensitive to background noise” (continuation of 6,072,882)

6,400,968 "System and method for extending the range of a base unit"

6,353,666 “System and method for providing an enhanced audio quality telecommunication session”

6,353,413 “Multi-function universal controller and locator system”

6,331,782 “Method and apparatus for wireless testing of integrated circuits”

6,272,681 “Cable modem optimized for high-speed data transmission from the home to the cable head” (continuation of 5,986,691)

6,212,227 “Constant envelope modulation for splitterless DSL transmission”

6,192,134 “System and method for a monolithic directional microphone array”

6,184,696 “Use of converging beams for transmitting electromagnetic energy to power devices for die testing”

6,151,335 “Modulation switching for DSL signal transmission”

6,101,216 “Splitterless digital subscriber line communication system”

6,072,882 “Method and apparatus for sensing an audio signal that is sensitive to the audio signal and insensitive to background noise”

6,037,743 “Battery charger and power source employing an environmental energy extractor and a method related thereto”

5,986,691 “Cable modem optimized for high-speed data transmission from the home to the cable head”

5,983,271 “Method for processing asynchronous low level protocols in a communications device to offload the main processor”

5,537,441 “Controlled simultaneous analog and digital communications”

5,444,704 “Dial restoral method and apparatus”