Abstract: The present invention is a computer automated process for analyzing and interpreting engineering drawings in a digital format. The process is the recognition of symbols and graphics in any type of engineering drawings followed by an analysis of the relationship between the symbols and the graphical elements in the drawing to provide a meaningful interpretation of the drawings. The interpretation of the drawings can be carried out in a variety of ways including quantitative analysis of the drawings and/or three dimensional reconstruction of the drawings.

Abstract: A computer automated process for vectorizing raster images to create usable graphic files which can be manipulated by CAD software. The present process makes use of the geometric relationship among the graphic elements contained in the raster image and keeps the graphics elements as a whole during the process of vectorization. The present process not only recognizes the whole line, but also recognizes all the lines intersecting it. The process requires a central processing unit a of a computer programmed with the appropriate instructions to analyze lines found in the bitmap image, together with all intersections and shapes associated with the line in the bitmap image and process that information in accordance with predefined algorithms to create a usable graphic image file. As each line is recognized it is vectorized and it is then deleted from the bitmap image to speed up the process of vectorization.

Abstract: A computer automated method for identification, management and retrieval of engineering drawings in digital format where the central processing unit locates and identifies specific predefined textual and graphical information, relating to that drawing, in accordance with predefined algorithms. The textual information thus identified is then stored in accordance with predefined criteria to allow the engineering drawing to be identified and retrieved by reference to that textual information.

Abstract: The present invention provides the nucleotide sequences of Acetobacter operons, cdg operons encoding genes for the biosynthesis and degradation of cyclic diguanosine monophosphate (c-di-GMP). Specifically, the nucleotide sequences and deduced amino acid sequences of 3 phosphodiesterases isozymes, 3 diguanylate cyclase isozymes, and 2 polypeptides of unidentified function are provided. Also provided for are various strains of microorganisms, including Acetobacter cells genetically manipulated so as to produce elevated and/or reduced levels of one or more cdg operon encoded proteins.

Abstract: Apparatus for combatting intersymbol interference and noise introduced into a data signal transmitted at a symbol rate l/T by a transmission channel having a memory span LT corresponding to a number of L consecutive data symbols, comprises a receive filter (RF), a first decision circuit (ID) for forming preliminary symbol decisions in response to the transmitted data signal, a second decision circuit (FD) for forming final symbol decisions, means (FFS and FBS) for compensating pre- and post-cursive intersymbol interference, and a combining circuit (AD) for forming the input signal for the second decision circuit (FD).