Patents Assigned to International Trading & Technology Co., Ltd.
  • Patent number: 11967982
    Abstract: A method for real-time processing of a detection signal, wherein signal processing is respectively performed when a detection signal is converted from a high level to a low level or vice versa. A moment at which a level of the detection signal is converted is recorded as a start point. A status of the detection signal is then detected in real time at a current moment. A current time width is compared to a maximum interval width of pre-set interference signals, and signal levels are determined and recorded from the start point to the current moment. Using characteristics of different interference signals, anti-interference processing is performed by using a targeted edge positioning and width recognition method, so that the delay impact of filtering on signals is avoided, improving both the recognition precision of weighing data of a checkweigher and the overall performance of the checkweigher.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: April 23, 2024
    Assignees: Mettler-Toledo (Changzhou) Measurement Technology Co., Ltd, Mettler-Toledo (Changzhou) Precision Instruments Co., Ltd, Mettler-Toledo International Trading (Shanghai) Co., Ltd
    Inventors: ShenHui Wang, JingKe Wang, ZhengQuan Liu, Qin Sun
  • Patent number: 8446164
    Abstract: A semiconductor device test system is disclosed. The semiconductor device test system extends driver- and comparator-functions acting as important functions of a test header to an external part (e.g., a HIFIX board) of the test header, such that it can double the productivity of a test without upgrading the test header. The semiconductor device test system includes a test header for testing a semiconductor device by a test controller, and a HIFIX board for establishing an electrical connection between the semiconductor device and the test header, and including a Device Under Test (DUT) test unit which processes a read signal generated from the semiconductor device by making one pair with a driver of the test header and transmits the processed read signal to the test header.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: May 21, 2013
    Assignee: International Trading & Technology Co., Ltd.
    Inventors: Kyung-hun Chang, Se-kyung Oh, Eung-sang Lee
  • Patent number: 8340940
    Abstract: An apparatus for multiplying a semiconductor test pattern signal, which firstly encodes a plurality of pattern signals to have different pattern types, and multiplies the encoded pattern signals according to an exclusive-OR (XOR) scheme in order to generate a single pattern signal, thereby recognizing a relationship between a pattern signal before the multiplication and the other pattern signal after the multiplication. A pattern-signal segmenting/outputting unit segments a semiconductor test pattern signal into a plurality of pattern signals, and simultaneously outputs the segmented pattern signals.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: December 25, 2012
    Assignee: International Trading & Technology Co., Ltd.
    Inventors: Kyung-hun Chang, Se-kyung Oh
  • Publication number: 20110018572
    Abstract: A semiconductor device test system is disclosed. The semiconductor device test system extends driver- and comparator-functions acting as important functions of a test header to an external part (e.g., a HIFIX board) of the test header, such that it can double the productivity of a test without upgrading the test header. The semiconductor device test system includes a test header for testing a semiconductor device by a test controller, and a HIFIX board for establishing an electrical connection between the semiconductor device and the test header, and including a Device Under Test (DUT) test unit which processes a read signal generated from the semiconductor device by making one pair with a driver of the test header and transmits the processed read signal to the test header.
    Type: Application
    Filed: October 17, 2008
    Publication date: January 27, 2011
    Applicant: INTERNATIONAL TRADING & TECHNOLOGY CO., LTD.
    Inventors: Kyung-hun Chang, Se-kyung Oh, Eung-sang Lee
  • Publication number: 20100262397
    Abstract: An apparatus for multiplying a semiconductor test pattern signal is disclosed. The multiplying apparatus firstly encodes a plurality of pattern signals to have different pattern types, and multiplies the encoded pattern signals according to an exclusive-OR (XOR) scheme in order to generate a single pattern signal, thereby recognizing a relationship between a pattern signal before the multiplication and the other pattern signal after the multiplication. A pattern-signal segmenting/outputting unit segments a semiconductor test pattern signal into a plurality of pattern signals, and simultaneously outputs the segmented pattern signals.
    Type: Application
    Filed: October 17, 2008
    Publication date: October 14, 2010
    Applicant: INTERNATIONAL TRADING & TECHNOLOGY CO., LTD.
    Inventors: Kyung-hun Chang, Se-kyung Oh