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Assignee: HEI, Inc.


Location: Victoria, MN
No. of patents: 8

NumberTitleIssue Date
6798223Test methods, systems, and probes for high-frequency wireless-communications devices
A test probe for a high-frequency device having an electronic circuit with two or more contact regions. The test probe comprises two or more signal probe tips. Each signal probe tip has a contact surface area for contacting one of the contact regions of the device. ...
09/28/2004
6696952Structures and assembly methods for radio-frequency-identification modules
Radio-frequency identification (RFID) devices are used in a variety of applications to facilitate the identification and tracking of people, objects, and animals. One problem with RFID devices or tags concerns manufacturing cost. Specifically, some tag de...
02/24/2004
6294966Interconnection device
An RF microcircuit package and interconnection device is disclosed which minimizes impedance mismatch between circuit elements. Multiple signal vie and close proximity ground vies as well as tuned wire bonds are disclosed....
09/25/2001
5936847Low profile electronic circuit modules
An improved circuit module construction for mounting and interconnecting electronic components to substrates, which is applicable to mounting a wide variety of electronic components and conductors, including inverted or `flip chip` mounted integrated circ...
08/10/1999
5847930Edge terminals for electronic circuit modules
Improved edge terminals for electronic circuit modules such as single- or multi-chip modules and hybrid circuits, and methods of making the edge terminals are disclosed. The improved edge terminals are formed on the edges of the modules, where they do not...
12/08/1998
4587421Photo-optic transducing head assembly
A photo-optic transducer assembly comprising a frame constructed to surround the peripheral edges of a ceramic hybrid circuit card such that a radiation source and a radiation responsive element coupled to said hybrid circuit card are appropriately aligne...
05/06/1986
4578569Multi-width card reader with cancellation feature
A hand-fed data-card reader compatible with cards of different widths and having a selectively actuable perforator for conveying cards past a reader head and for selectively cancelling desired cards via the perforation thereof. Cards are conveyed via a be...
03/25/1986
4550250Cordless digital graphics input device
A cordless graphics input device system for use with a computer. The device comprises an infrared emitting module useable on any surface adjacent a detector having a pair of patterned concave sensors. Coordinate information is determined via a detector co...
10/29/1985
 
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