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:
Dec. 26, 1989
Filed:
Mar. 02, 1988
Mitsuyoshi Takano, Tokyo, JP;
Anritsu Corporation, Tokyo, JP;
Abstract
An input processing section outputs a digital signal corresponding to a frequency sweep range of an input signal. A memory stores the digital signal. A display displays the digital signal stored in the memory as an image which is developed along a frequency axis. A scroll command section provides a command for shifting the image. A controller supplies, prior to the command, control signals to the input processing section, for causing the input processing section to process the input signal in a first frequency sweep range and supplies, and to the memory, for causing the memory to store the digital signal. When the command is received, the controller supplies control signals to the input processing section for causing the input signal to be processed in a second frequency sweep range in accordance with a content of the command, and to the memory for causing an address range of the memory to shift and the memory to store the obtained digital signal. The display displays an image of the second frequency sweep range continuously with the image of the first frequency sweep range which is shifted in accordance with the command.