Title: Circuitry for displaying a constantly changing M-mode output on a raster scan display

Abstract: Circuitry for displaying a constantly changing M-mode transducer scan output on a raster scan display in the form of a first multiplicity of data lines each containing a second multiplicity of data words and each representing a scan of the transducer output at a particular closely spaced scanning time and such that the data line representing the oldest scan is periodically erased and a data line representing the newest scan is displayed. The circuitry includes random access memory having a first multiplicity of memory elements each for storing a data line. A random access memory input counter enables loading of the memory, data line by data line, and a random access memory advance output counter enables read out from the memory sequentially one data word from each line for each raster scan.

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Other info:

Inventors: Toor, Yair (Rehovot, IL, US)
Rouso, Haim (Tel-Aviv, IL, US)
Kopilavitz, Ben-Zion (Petach Tikva, IL, US)

Application Number: 847021
Filing Date: 1977-10-31
Publication_date: 1979-07-10
Assignee: Israel Electro-Optical Industry Ltd. (Rehovot, IL)
Primary Class(es): 345/28
Other Classes:
US Patent Ref:

3835455	Sep, 1974	Abbenante	364/900.
3883852	May, 1975	Cotter	364/900.
3898644	Aug, 1975	Baxter	340/324.
3909792	Sep, 1975	Harris et al.	364/900.
3947826	Mar, 1976	Bockwoldt	364/900.
4045815	Aug, 1977	Griffith et al.	340/324.
4070662	Jan, 1978	Narveson	340/324.

Other Refs:
Primary Examiner: Chapnick, Melvin B.
Assistant Examiner:
Attorney: Browdy and Neimark