812 F. Supp. 2d 1022
N.D. Cal.2010Background
- Plaintiff Shared Memory Graphics (SMG) accuses Apple and Nintendo defendants of infringing the 664 and 279 patents relating to a Shared Memory Graphics Accelerator System.
- Patents cover memory systems with on-chip and off-chip frame buffers and a data distribution bus to allocate display data by criteria.
- Plaintiff served infringement contentions with claim charts under Patent Local Rule 3-1; Defendants challenge adequacy and request supplemental disclosures.
- Court bifurcated discovery from substantive rulings and directed preliminary handling of ICs under Local Rule 3-1; the issue includes potential Rule 11 implications.
- Court finds several ICs insufficiently specific (notably failure to identify the data distribution bus and its flow among structures), while some ICs provide adequate notice for specific components.
- Court grants motions to compel the amended ICs and stays discovery with respect to Nintendo and Sony through Feb 1, 2011, with amended disclosures due Jan 31, 2011.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Whether ICs meet Local Rule 3-1 specificity requirements | SMG provided specific chips and locations to map claim elements | Defendants lack sufficient detail to identify the bus and data flows | Generally, ICs must be sufficiently specific; some are adequate, others too vague. |
| Whether reverse engineering content should be required in ICs | ICs should reflect reverse-engineered elements and all pre-filing facts | Not all ICs require reverse-engineering-level detail | Court accepts that ICs must provide actionable mapping; reverse-engineered content should be disclosed where material. |
| Impact of insufficient ICs on potential early motions or discovery | Adequate ICs facilitate early motions and reduce fishing | Inadequate ICs prevent meaningful early testing | ICs that lack necessary detail can lead to amended disclosures; discovery stays for certain parties pending amendment. |
| Effect of “wherein” limitations on contentions | Wherein clauses may state material conditions requiring separate contentions | Such limitations cannot be ignored and require treatment | Wherein limitations must be addressed in ICs; cannot be ignored in rule compliance. |
Key Cases Cited
- View Engineering, Inc. v. Robotic Vision Systems, Inc., 208 F.3d 981 (Fed. Cir. 2000) (clarifies sufficiency of notice under Rule 3-1)
- Antonious v. Spalding & Evenflo Cos., Inc., 275 F.3d 1066 (Fed. Cir. 2002) (requires reasonable inference that all accused products infringe)
- Hoffer v. Microsoft Corp., 405 F.3d 1326 (Fed. Cir. 2005) (addresses materiality of select limitations in claims)