Complex sentence: The original secure cryptoprocessor was designed for copy protection of personal computer software (see US Patent 4,168,396, Sept 18,1979) and was inspired by Bill Gates' Open_Letter_to_Hobbyists.
Split into simpler sentences: The original secure cryptoprocessor was designed for copy protection of personal computer software (see US Patent 4,168,396, Sept 18,1979). This hardware solution to the copy protection problem was inspired by Bill Gates' Open_Letter_to_Hobbyists.