Todd H Gartner

Title: The Innovative Contributions of Todd H Gartner

Introduction

Todd H Gartner is a notable inventor based in Phoenix, AZ (US). He has made significant contributions to the field of telecommunications through his innovative patent. His work focuses on enhancing the efficiency and reliability of telephone circuits.

Latest Patents

Todd H Gartner holds a patent for a "Telephone circuit using DC blocked transformer and negative impedance." This invention provides a combination in a Subscriber Line Interface Circuit (SLIC) for telecommunication applications. It utilizes AC impedance synthesis to raise the impedance of battery feed resistances through feedback techniques. The invention incorporates real battery feed resistors and a DC block transformer, which is coupled to line current feed resistors and a feedback loop network. This synthesis aims to achieve the desired input impedance while incorporating both positive and negative feedback. A loop stabilizing resistor is used in shunt with the DC blocked transformer secondary to reduce gain peaking and phase shift. The transformer plays an integral role in the feedback loop, ensuring that the output stages of the solid-state operational amplifier circuitry are transformer isolated from the subscriber line. This design effectively mitigates the problem of lightning-induced transients by providing high resistance isolation.

Career Highlights

Todd H Gartner is associated with Siemens Transmission Systems, Inc., where he applies his expertise in telecommunications. His work at Siemens has allowed him to contribute to advancements in technology that enhance communication systems.

Conclusion

Todd H Gartner's innovative patent and contributions to telecommunications demonstrate his commitment to improving technology in this field. His work continues to influence the development of reliable communication systems.