Steven C Tung

US Patent:

20030023605, Jan 30, 2003

Filed:

Jul 13, 2001

Appl. No.:

09/905346

Inventors:

Jeffrey Sternin - San Jose CA, US
Steven Tung - Castro Valley CA, US
Yongping Qi - Fremont CA, US

International Classification:

G06F007/00

US Classification:

707/100000

Abstract:

One embodiment of the present invention provides a system that facilitates fast network management protocol replies in large tables. The system operates by first receiving a request for a next row from a network management protocol table. The system then compares the object identifier in the request with a pre-calculated object identifier. If the object identifier matches the pre-calculated object identifier, the system responds to the request with a pre-calculated response. If the object identifier does not match the pre-calculated object identifier, the system searches a management information base for the next row in the network management protocol table. Next, the system calculates a response, which includes data from requested columns of the next row. The system then responds to the request.

US Patent:

20180102641, Apr 12, 2018

Filed:

Apr 20, 2017

Appl. No.:

15/492269

Inventors:

- San Jose CA, US
Steven Po-Cheng Tung - San Jose CA, US

International Classification:

H02H 9/04

Abstract:

A battery assembly device with charging and discharging protection is provided. The aforementioned device includes a plurality of serially connected battery modules and each of the battery module further includes one or a plurality of battery units, a plurality of serially connected first diodes which are parallel connected with the battery unit, a protection circuit including a second diode and third diode which are parallel connected to each other, and a fourth diode. Aforementioned protection circuit is serially connected with the battery unit and configured between two connection points of the battery module, electrode polarity of the second diode and electrode polarity of third diode at connection point are different, and the fourth diode are configured between the two connection points of the battery module and its electrode polarity are different with the connection point of the battery unit. Aforementioned device enables the specific circuit loop formed by specific diodes to bypass the disabled battery unit so as to avoid the disabled battery unit effecting the operation of whole battery assembly device.

US Patent:

20170330655, Nov 16, 2017

Filed:

May 13, 2016

Appl. No.:

15/154309

Inventors:

- San Jose CA, US
Steven Po-Cheng Tung - San Jose CA, US

International Classification:

H01C 1/026
H01C 13/00

Abstract:

A high voltage impedance device with surface leakage proof configuration is applied in a divider. Aforementioned divider is assembled by a high impedance element, an inner case body and an outer case body. The high impedance element is sealed in the inner case body and a closed interlayer between the inner case body and the outer case body is filled with noble gas as an insulating layer. While the high impedance element is applied in high voltage, the closed interlayer can prevent the current-leakage from forming impedance paralleled with the high impedance element. The current-leakage is formed on the surface of insulting portion, or is formed by moisture, dust or corona effect. Therefore, the current-leakage proof divider may maintain the stability/linearity of the voltage division and then reduce the distance between two ends of the high impedance element effectively and still maintain the linearity of measuring voltage.