Ravindra D Tembhekar

Title: Innovations of Ravindra D Tembhekar

Introduction

Ravindra D Tembhekar is a notable inventor based in Santa Clara, CA. He has made significant contributions to the field of integrated circuit transceivers, particularly in the context of network communication standards.

Latest Patents

One of his key patents is titled "Detection of direct current in the presence of Manchester-encoded signals." This method and apparatus are designed for inclusion in an integrated circuit transceiver that meets IEEE 802.3 standards. The invention focuses on detecting 'collisions' to ensure that multiple stations do not transmit simultaneously over a network. The method utilizes a novel three-pole cyclical low-pass filter that attenuates the AC component received over the network to less than 20 mV. This allows for effective collision detection within the 900-nanosecond budget specified by the IEEE standard. A differential operational amplifier processes the signal from the network along with a collision reference voltage. The output from the differential amplifier is filtered by the low-pass filter and then sent to a high-gain comparator, which functions as a zero-crossing detector. The comparator generates ECL logic signals that indicate whether a collision has occurred or not. This collision detector operates effectively over a wide range without requiring field 'trimming'.

Career Highlights

Ravindra D Tembhekar is currently employed at Advanced Micro Devices Corporation, where he continues to innovate in the field of technology. His work has had a significant impact on the development of reliable network communication systems.

Collaborations

He has collaborated with various professionals in his field, including his coworker David L Campbell, to further enhance the capabilities of their technological advancements.

Conclusion

Ravindra D Tembhekar's contributions to the field of integrated circuit transceivers exemplify the importance of innovation in technology. His patent on collision detection is a testament to his expertise and commitment to improving network communication standards.