This inventor holds 4 USPTO granted patents. Top assignee: Motorola Corporation. Active years: 1995-2002.
Location History:
- Wauconda, IL (US) (1995 - 1997)
- Phoenix, AZ (US) (2001 - 2002)
Company Filing History:
Years Active: 1995-2002
Title: Innovations of James S. Mielke
Introduction
James S. Mielke is a notable inventor based in Phoenix, AZ. He has made significant contributions to the field of telecommunications, particularly in the development of digital transmitter circuits and methods of operation. With a total of 4 patents to his name, Mielke's work has had a lasting impact on the industry.
Latest Patents
Mielke's latest patents include a digital transmitter circuit and method of operation. This invention features a transceiver that receives a digital data stream from a digital signal processor to delay lines. The delay lines provide an address to a ROM look-up table, which selects protocols such as TDMA, CDMA, and GSM. Additionally, a multi-accumulator fractional-N synthesizer receives phase derivative coefficients, while a DAC receives amplitude modulation coefficients from the look-up table based on the selected protocol. The analog output signals from the DAC and the synthesizer are processed by a variable gain amplifier, generating an RF amplitude and frequency modulated output signal for transmission.
Another significant patent is the method for extending the linear range of an amplifier. This invention also involves a transceiver that utilizes a digital data stream from a digital signal processor to delay lines. The look-up table in this patent stores phase derivative coefficients and amplitude modulation coefficients that correct for non-linearity in the variable gain amplifier.
Career Highlights
James S. Mielke has had a distinguished career at Motorola Corporation, where he has been instrumental in advancing telecommunications technology. His innovative designs and patents have contributed to the company's reputation as a leader in the industry.
Collaborations
Mielke has collaborated with notable coworkers such as Albert H. Higashi and Serge Drogi. Their combined expertise has fostered an environment of innovation and creativity within their projects.
Conclusion
James S. Mielke's contributions to telecommunications through his patents and work at Motorola Corporation highlight his role as a significant inventor in the field. His innovative solutions continue to influence the industry today.