Abstract: A first state identifier is determined according to the state of a first file at a first time point, and a second state identifier is determined according to the state of a second file at a second time point. The first and second state identifiers are compared and an alignment indication is displayed to a user of a client device thereby making the user aware of the alignment state between the files. The files may be associated with different client devices or different users thereby showing group alignment. The files may also be associated with a single user or client device thereby showing local alignment. The state identifiers may include digest hashes of content of the first and second files, metadata, or state information regarding the files. The files may be encrypted and access check keys utilized to determine whether a client device is authorized to receive an encrypted file.

Abstract: A first state identifier is determined according to the state of a first file at a first time point, and a second state identifier is determined according to the state of a second file at a second time point. The first and second state identifiers are compared and an alignment indication is displayed to a user of a client device thereby making the user aware of the alignment state between the files. The files may be associated with different client devices or different users thereby showing group alignment. The files may also be associated with a single user or client device thereby showing local alignment. The state identifiers may include digest hashes of content of the first and second files, metadata, or state information regarding the files. The files may be encrypted and access check keys utilized to determine whether a client device is authorized to receive an encrypted file.

Abstract: A first state identifier is determined according to the state of a first file at a first time point, and a second state identifier is determined according to the state of a second file at a second time point. The first and second state identifiers are compared and an alignment indication is displayed to a user of a client device thereby making the user aware of the alignment state between the files. The files may be associated with different client devices or different users thereby showing group alignment. The files may also be associated with a single user or client device thereby showing local alignment. The state identifiers may include digest hashes of content of the first and second files, metadata, or state information regarding the files. The files may be encrypted and access check keys utilized to determine whether a client device is authorized to receive an encrypted file.

Abstract: A system for evaluating the reflectance of an object (e.g., a CRT) that is coated with an anti-reflective coating material is disclosed. The quality and/or uniformity of the coating is evaluated by a reflectometer. The reflectometer is positioned relative to the object by non-contact sensors. Reflectance data gathered by the reflectometer is analyzed to determine to what extent the actual coating differs from the optimal (i.e., ideal) coating. A feedback system modifies the coating process for subsequent objects in an attempt to fine-tune the coating process and achieve optimal anti-reflective coatings.

Abstract: A system for evaluating the reflectance of an object (e.g., a CRT) that is coated with an anti-reflective coating material is disclosed. The quality and/or uniformity of the coating is evaluated by a reflectometer. The reflectometer is positioned relative to the object by non-contact sensors. Reflectance data gathered by the reflectometer is analyzed to determine to what extent the actual coating differs from the optimal (i.e., ideal) coating. A feedback system modifies the coating process for subsequent objects in an attempt to fine-tune the coating process and achieve optimal anti-reflective coatings for later objects passing through the system.