I / A / B Sequence
Excerpt from the original CRV manual by Paul H. Smith:
The core of all CRV structure, the “I/A/B” sequence is the fundamental element of Stage I, which is itself in turn the foundation for site acquisition and further site detection and decoding in subsequent CRV stages. The sequence is composed of an ideogram (the “I”), which is a spontaneous graphic representation of the sites major gestalt; the “A” component or “feeling/motion” involved in the ideogram; and the “B” component, or first analytic response to the signal line.