Patents Assigned to IDT, Inc.
  • Patent number: 11710023
    Abstract: The present invention relates to a permanently attached UHF band RFID tire tag and a manufacturing method thereof, and more specifically, the present invention relates to a permanently attached UHF band RFID tire tag and a manufacturing method thereof, which is attached to a tire surface during the manufacturing process of a tire in a high-temperature and high-pressure environment, enabling the management of tire manufacturing history from the beginning of the production to product shipment, and thereafter, the durability is maintained even in the flexing motion of a tire that occurs while the tire is installed and operated in a vehicle such that chip damage of a tag and tag detachment from the tire do not occur, and therefore, it enables RFID communication to be performed without obstacles until the end of a tire life.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: July 25, 2023
    Assignee: ASIANA IDT INC.
    Inventors: Jong Sup Yun, Uh Chul Jeon
  • Patent number: 8025238
    Abstract: Disclosed herein is a built-in RFID tire tag. The built-in RFID tire tag includes an antenna and a circuit unit. The antenna is mounted in a tire, and is configured to be operated by resonating with radio waves, which are transmitted from an RFID reader and to have a repetitive corrugated shape. The circuit unit is configured to be operated by being supplied with power using the radio waves. The antenna includes a pair of tag radiators. Each of the tag radiators is divided into a first region and a second region. The corrugation density of the second regions, which are close to the circuit unit, is greater than that of the first regions, which are not close to the circuit unit. The first regions, which depend on rotational motion of the tire, adapt flexibly to bending and torsion of the tire by the difference between the corrugation densities.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: September 27, 2011
    Assignee: Asiana IDT Inc.
    Inventors: Hong Chae Jung, Sang Kug Moon, Jong Sup Yun, Jong Hwan Yoon, Ho Jeong Ko, Jeong Geol Seo, Dong Uk Lim, Nam Hoon Kim, Sung Chul Kim
  • Publication number: 20100090013
    Abstract: Disclosed herein is a built-in RFID tire tag. The built-in RFID tire tag includes an antenna and a circuit unit. The antenna is mounted in a tire, and is configured to be operated by resonating with radio waves, which are transmitted from an RFID reader and to have a repetitive corrugated shape. The circuit unit is configured to be operated by being supplied with power using the radio waves. The antenna includes a pair of tag radiators. Each of the tag radiators is divided into a first region and a second region. The corrugation density of the second regions, which are close to the circuit unit, is greater than that of the first regions, which are not close to the circuit unit. The first regions, which depend on rotational motion of the tire, adapt flexibly to bending and torsion of the tire by the difference between the corrugation densities.
    Type: Application
    Filed: March 4, 2008
    Publication date: April 15, 2010
    Applicant: Asiana IDT Inc.
    Inventors: Hong Chae Jung, Sang Kug Moon, Jong Sup Yun, Jong Hwan Yoon, Ho Jeong Ko, Jeong Geol Seo, Dong Uk Lim, Nam Hoon Kim, Sung Chul Kim
  • Patent number: 6654595
    Abstract: Radio system including mixer device and switching circuit and method having switching signal feedback control for enhanced dynamic range and performance. Radio apparatus including: local oscillator input port for receiving periodic sinusoidal local oscillator signal; drive circuit for generating a substantially square-wave two-voltage level switching signal including: phase splitter circuit, voltage potential isolation circuit, and square wave signal generation circuit; FET mixing device; input/output signal separation circuit; analog-to-digital converter; and feedback control circuit. Radio tuner apparatus including low-band signal processing circuit; high-band signal processing circuit including first mixer circuit operating as an up-frequency converter, amplifier circuit, second mixer circuit operating as a down-frequency converter, and feedback control circuit for adjusting a duty cycle of a mixer switching device; signal combining circuit and output processing circuit.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: November 25, 2003
    Assignee: Signia-IDT, Inc.
    Inventor: Charles E. Dexter
  • Patent number: 5983251
    Abstract: A modelling technique for compact representation of related images is disclosed. The images are described as collections of spatial segments, each of which is modelled with a multivariate bi-linear model in the intensity and similarity also in the address domain. As applied to digitized video sequences, each bi-linear model consists of a set of spatial change patterns relative to a reference and a set of corresponding temporal scores that indicate how much of each change pattern is present in each image. Both the structure of the encoding and decoding algorithms and also the data structure of the compact representation are disclosed. This multi-domain modelling allows efficient data representation by removal of redundancies in the spatial, temporal and other domains.
    Type: Grant
    Filed: March 8, 1996
    Date of Patent: November 9, 1999
    Assignee: IDT, Inc.
    Inventors: Harald Aagaard Martens, Jan Otto Reberg
  • Patent number: 5476444
    Abstract: A method for extracorporeal blood heating to effect whole body hyperthermia, which utilizes a hemodialyzer with a sorbent suspension in the dialysate, a blood pump and a heat exchanger--in addition to various probes and catheters and heated anterior and posterior blankets for the patient--to effect extracorporeal treatment without adverse effect on blood physiology and without the need for general anesthesia. Blood returning to the body is heated to at least about 46.degree. C. Incorporation of hemodialysis into the blood heating treatment solves at once several problems which plagued prior art hyperthermia techniques: it rectifies any imbalances of sodium, potassium, magnesium, bicarbonate or phosphate, and may remove toxins incident to necrosis of tumors and virally infected cells. Hyperthermia protocols with sorbent--based dialysis of blood thus avoid the various serious side effects which complicated--even to the point of death--the hyperthermia treatments known from the past.
    Type: Grant
    Filed: October 4, 1994
    Date of Patent: December 19, 1995
    Assignee: IDT, Inc.
    Inventors: Norman G. Keeling, Stephen R. Ash, Robert B. Truitt, Joseph A. Guzman