This bit at the end is the best part, I think: > while particular embodiments and applications have been illustrated and described, it is to be understood that

This bit at the end is the best part, I think: > while particular embodiments and applications have been illustrated and described, it is to be understood that the disclosed embodiments are not limited to the precise construction and components disclosed herein. _Various modifications, changes and variations, which will be apparent to those skilled in the art, may be made in the arrangement, operation and details of the method and apparatus disclosed herein without departing from the spirit and scope defined in the appended claims._ If I'm reading this correctly, this patent is claiming things that are "apparent" (obvious?) to those "in the know". Computer or not, how did this get granted?