The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 28, 1997
Filed:
Apr. 11, 1994
James K Bullis, Sunnyvale, CA (US);
Other;
Abstract
A system has been invented which produces images comparable to those produced by video cameras. This BEAMFORMED TELEVISION uses a transmitting array, a receiving array, and signal processing equipment to form interactive beams. The transmitting array system provides the capability to resolve the scene in one dimension and the receiving array system provides the capability to resolve the scene in the other dimension. High resolution is achieved with large arrays using unconventional spatial sampling methods with interaction between the two arrays to suppress grating lobe effects. The arrays are long in one dimension and narrow in the other. Grating lobe positions are adjusted by adjusting the transducer spacing such that the combined system response excludes grating lobe effects. Directional transducers are used to provide additional attenuation of grating lobes. Extended near field focusing of transmitted signals is achieved with a simultaneous beam segment focusing system where the volume of interest is divided into a system of transmit beam segments. Transmit beam segments are defined by both range and direction relative to the transmitting array. A unique code is associated with each transmit beam segment such that the reflected signals that are caused by scattering centers in each beam segment are recognizable, unique, coded signals. The received signals are processed to recognize the coded signals thereby identifying the beam segment from which the coded signal was reflected. Thus, the volume of interest is resolved corresponding to the transmit beam segments. The sensed signals are also processed to form receive beams which selectively respond to signals arriving from different directions. The receiving array is arranged so that these beams resolve the position of the scattering centers in another dimension. The data is processed to provide image signals which are displayed in television style format. The processing is done at speeds which provide frame rates suitable for underwater viewing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile