This inventor holds 3 USPTO granted patents, plus 1 CIPO patent and 1 EPO patent. Top assignees: Qualcomm Incorporated, Telefonaktiebolaget Lm Ericsson (Publ). Active years: 2002-2004.
Company Filing History:
2 out of 44,749 
1 out of 26,941 
Years Active: 2002-2004
Title: Bruce S Schwartz: Innovator in CDMA Technology and Oscillating Circuits
Introduction
Bruce S Schwartz is a notable inventor based in Boulder, CO (US). He has made significant contributions to the fields of telecommunications and circuit design, holding a total of 3 patents. His work primarily focuses on enhancing signal transmission and calibration methods.
Latest Patents
One of his latest patents is related to CDMA signal transmission control. This invention encompasses a CDMA transmission control technology that integrates various functionalities, including decresting, in-band to out-of-band ratio (RIO), power control, and spectral shaping. Decresting effectively reduces peaks in the CDMA signal, while RIO generates a ratio based on the signal strength of in-band versus out-of-band portions. Power control adjusts the gain of the CDMA signal based on quadrature signal calculations, and spectral shaping attenuates in-band portions of the CDMA signal adjacent to the corner frequencies. This technology can be implemented in a CDMA base station to extend range and capacity.
Another significant patent by Schwartz is an oscillating circuit and method for calibrating the same. This invention features a quartz crystal oscillator that generates a clock signal synchronized to a master signal during lock-in periods. When the oscillating circuit loses access to the master signal, an oscillation frequency function predicts the crystal oscillation frequency based on physical parameters such as time and temperature. The predicted frequency is compared with a standard frequency to generate an error signal, which is then used to calibrate the oscillation signal of the circuit.
Career Highlights
Throughout his career, Bruce S Schwartz has worked with prominent companies in the telecommunications industry, including Qualcomm Incorporated and Telefonaktiebolaget Lm Ericsson (Publ). His experience in these organizations has allowed him to develop and refine his innovative ideas.
Collaborations
Schwartz has collaborated with notable professionals in his field, including Anthony C K Soong and Brian K Harms. These collaborations have contributed to the advancement of his inventions and the overall progress in telecommunications technology.
Conclusion
Bruce S Schwartz is a distinguished inventor whose work in CDMA technology and oscillating circuits has made a significant impact in the field. His patents reflect his commitment to innovation and excellence in engineering.