Prometheus calls that accusation absurd and said only researchers who use its reference numbers as part of a treatment method could be accused of infringing.
Mr. Houghton has described them as torn pieces of paper, perhaps in reference to Mr. Gehry's reputed method of crumpling scraps to model his architecture's curves.
In accordance with Casio's own standard with reference to the US MIL-STD-810F Method 516.5-Shock, the camera passed a test in which it was dropped from a height of 2.13 meters (7 feet) onto lauan plywood at 26 different angles.