Creative Technology Ltd. announced Tuesday that it settled its suit with ESS Technology Inc., a competitor in the PC audio market.
Terms of the settlement were not disclosed. In March, the Singapore-based sound card maker, Creative, had filed separate suits against two companies: Fremont, Calif.-based ESS, a manufacturer of audio chips, and San Jose-based Diamond Multimedia Systems Inc.
To date, Creative and Diamond have not publicly resolved their lawsuit. Representatives from both Creative and Diamond did not return calls by press time.
At issue was Creative's patent #5,698,803, which concerned the use of on-chip cache memory employed by a "digital sampling instrument", according to an ESS spokesman. Creative had charged that ESS' Maestro family of audio chips had infringed the patent.
The second suit also named Diamond's S70 Sonic Impact PC audio add-in card, which used ESS' Maestro-II chip. That card has been discontinued and is not currently available, according to information posted on Diamond's web site.
Also in March, Creative and its subsidiary, E-mu-Systems Inc. filed a separate patent infringement suit against another manufacturer of audio chips, Fremont, Calif.-based Aureal Semiconductor Inc. In August, Aureal asked a Northern California federal judge to dismiss the case, while Creative responded by asking for a preliminary injunction against sale and shipment of Aureal's own Vortex 2 chips. According to an Aureal spokesman, no decision on either request has been delivered.