Abstract: Low-particulate dihydric aromatic compounds such as bisphenol-A that can be used in the synthesis of low-particulate polycarbonates are prepared by introducing into a desorber column containing a non-aggregate packing material an adduct of bisphenol and phenol and optionally a stripping gas. The column is maintained at an operating temperature that is sufficiently high and an operating pressure that is sufficiently low such that the adduct is distilled. The stream of phenol and the stripping gas is recovered from the top of the column. A second stream containing bisphenol that is substantially free of added particulate matter is recovered from the bottom of the column. This purified stream of bisphenol-A can further be used in a method of producing optical-grade polycarbonate.

Abstract: Low-particulate dihydric aromatic compounds such as bisphenol-A that can be used in the synthesis of low-particulate polycarbonates are prepared by introducing into a desorber column containing a non-aggregate packing material an adduct of bisphenol and phenol and optionally a stripping gas. The column is maintained at an operating temperature that is sufficiently high and an operating pressure that is sufficiently low such that the adduct is distilled. The stream of phenol and the stripping gas is recovered from the top of the column. A second stream containing bisphenol that is substantially free of added particulate matter is recovered from the bottom of the column. This purified stream of bisphenol-A can further be used in a method of producing optical-grade polycarbonate.

Abstract: A table configured for play of the game Monte in a casino includes a number of player positions and a dealer position. It further includes a number of card areas and a number of bet areas. Chips are used to place bets. The casino pays bets in an amount less than the original bet for a window winner and in an amount equal to the bet for a match winner. The bets are paid in chips.

Abstract: Apparatus and method are disclosed for enabling rapid search of magnetic tape having information helically recorded thereon. A tape mark, consisting of an analog signal, is recorded on the magnetic tape as a physical location reference in a manner such that the mark can be detected at both normal playback speed and at faster search speeds. The recorded analog signal provides a highly reliable indication of record boundaries, including end of file, end of volume, end of directory, and the like.

Abstract: Short traces of consecutive CPU references to storage are accumulated and processed to ascertain hit ratio as a function of cache size. From this determination, an allocation of cache can be made. Because this determination requires minimal processing time, LRU-referenceable memory space among concurrently executing sequential processes is used dynamically by a CPU cache manager.

Abstract: Apparatus for detecting and correcting errors in one or two tracks of a multi-bit, multi-track data group which includes an error correction character (ECC). The received data group is simultaneously stored and applied to an ECC generator which operates upon each data byte according to an operator B such that an error correction character ECC is reproduced. The ECC is of such a nature that another application of operator B produces a new character termed an error vector E. If all of the received data characters are correct all data bits of the error vector E will be zero. The error vector may be regressively operated on by the operator B and sequentially compared to a locally-generated parity vector P.sub.n. If single track is in error its identity is determined by the number of cycles by operator B necessary to obtain an error vector identical to the parity vector.