Landmark Digital Services LLC
12Patents
8Active
12Granted
49Portfolio score
Filing activity: Sep 27, 2000 → Sep 4, 2008 · 8 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6990453B2 | System and methods for recognizing sound and music signals in high noise and distortion | Physics | 664 | Expired |
| US7853664B1 | Method and system for purchasing pre-recorded music | Physics | 445 | Expired |
| US7346512B2 | Methods for recognizing unknown media samples using characteristics of known media samples | Physics | 205 | Expired |
| US7627477B2 | Robust and invariant audio pattern matching | Physics | 143 | Active |
| US7359889B2 | Method and apparatus for automatically creating database for use in automated media recognition system | Emerging Cross-Sectional Technologies | 112 | Expired |
| US7865368B2 | System and methods for recognizing sound and music signals in high noise and distortion | Physics | 51 | Active |
| US7986913B2 | Method and apparatus for identificaton of broadcast source | Electricity | 36 | Active |
| US8090579B2 | Automatic identification of repeated material in audio signals | Physics | 31 | Active |
| US7739062B2 | Method of characterizing the overlap of two media segments | Electricity | 28 | Active |
| US8015123B2 | Method and system for interacting with a user in an experiential environment | Physics | 26 | Active |
| US8453170B2 | System and method for monitoring and recognizing broadcast data | Electricity | 13 | Active |
| US7840177B2 | Device for monitoring multiple broadcast signals | Electricity | 2 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.