Abstract: A document exchange system including a write dispatcher which receives semi-structured documents and access control information from a first party relating to authorized viewers of the document. A capsule creator merges the semi-structured document and the access control information from the write dispatcher into a second semi-structured document to form a capsule. A capsule database then stores the capsules. An indexer creates an index entry for the capsule and an index database stores these index entries. A read dispatcher receives inquiries and identification information from a second party. A query processor then searches the index database and a storage server retrieves all relevant capsules that the second party is authorized to access. A capsule extractor then extracts the posted documents to be forwarded to the second party.

Abstract: Method and apparatus for evaluating the quality of a flame in response to outputs from a flame sensor.The present invention includes a method and apparatus in which output pulses from a flame sensor are continuously counted.The number of pulses is accumulated over a time interval of a predetermined length and compared with a threshold value. The accumulated total is continuously updated to reflect the pulses received over the previous time interval to effectively provide a moving time-window of a fixed length over which pulses from the flame sensor are accumulated. Other additional checks may be made to ascertain that a flame is present, including the time over which no pulses are detected and a long-term average of the number of pulses.A preferred embodiment disclosed in which numerous self-checking features are incorporated, and which includes a novel bar-graph type of display for displaying flame quality and diagnostic information.