From the Bloomberg article:-
"Apple previously claimed it is the true owner of the image- preview patent that is the subject of infringement claims lodged against Apple and Research in Motion Ltd. The Cupertino, California-based company contends that it developed a digital camera in the early 1990s that it shared with Kodak, and that Kodak then sought the patent on the technology."
Depending on where you look:-
George Smith and Willard Boyle invented the charge-coupled device (CCD) in 1969 and created a protype camera in 1970,
Steven Sasson as an engineer at Eastman Kodak invented and built a digital camera using a charge-coupled device image sensor in 1975.
Texas Instruments patented a film-less electronic camera in 1972 (US patent 4,057,830)
Kodak scientists invented the world's first megapixel sensor (1.4 megapixels) in 1986.
Yes, Apple did invent the digital camera in the early 1990's.