Company Filing History:
Years Active: 2003-2004
Title: The Innovations of Donald E MacNally
Introduction
Donald E MacNally is a notable inventor based in San Francisco, CA. He has made significant contributions to the field of radio transceivers, holding a total of 2 patents. His work focuses on enhancing communication technologies through innovative designs and systems.
Latest Patents
One of MacNally's latest patents is an antenna interface designed for a Time Division Duplex (TDD) radio transceiver. This invention allows a transceiver to connect to an antenna or filter without requiring an antenna switch. The antenna interface features a single Balun circuit that converts a single-ended signal to and from differential signals. Additionally, it includes a single impedance matching circuit that aligns the output impedance of the Balun circuit with the input impedance of a Low Noise Amplifier (LNA) and provides the output impedance for a Power Amplifier (PA). Both the LNA and PA are based on CMOS technology and are integrated into a single circuit.
Another significant patent by MacNally involves an automatic gain control and offset correction system for a direct conversion type transceiver. This system incorporates an amplifier that enhances a baseband signal derived from a received RF signal. It features a feedback offset canceller that controllably eliminates DC offset, an automatic gain controller that manages the amplifier's gain, and a feed forward offset canceller linked to a signal peak detector. This innovative design allows for simultaneous control of the automatic gain controller and the feed forward offset canceller, further improving signal quality.
Career Highlights
Throughout his career, Donald E MacNally has worked with prominent companies such as Level One Communications, Inc. and Intel Corporation. His experience in these organizations has contributed to his expertise in the field of communication technologies.
Collaborations
MacNally has collaborated with various professionals in his field, including his coworker Thomas Byunghak Cho. Their joint efforts have likely led to advancements in the technologies they have developed.
Conclusion
Donald E MacNally's contributions to the field of radio transceivers through his innovative patents demonstrate his commitment to advancing communication technology. His work continues to influence the industry and inspire future innovations.