Patents
US 10230821 B2: System and method for detecting VOIP traffic
- Granted
- 2019-03-12
- Filed
- 2015-12-30 application 14984188
- Type
- Utility · 23 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A system and method of classifying a set of internet protocol network data traffic as likely or unlikely to contain constant-packet-rate data or VoIP traffic using frequency spectrum analysis of data packet arrival times. The method is performed with an apparatus connected in-line on the network link from which the set of network data traffic is obtained. The network data traffic is presorted by packet size, source IP address, destination IP address, source port number, destination port number, or transport-layer protocol to limit the required analysis. A sliding window function is used to provide the time-domain input data to the frequency spectrum analysis. A threshold function is used to detect peaks in the calculated frequency spectrum that indicate constant-packet-rate traffic. An automated system preferably captures the network data traffic from one or more network links, immediately performs the frequency spectrum analysis on the data traffic and stores the results in memory for later access.
Source: PVGPATDIS, file of 2026-04-10 (ipg190312.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Research Electronics International, LLC 8 patents | US company or organization | Cookeville, TN | RESEARCH ELECTRONICS INTERNATIONAL, L.L.C. State business registration FUZZY medium confidence: same name (legal endings aside) and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Bruce R. Barsumian | Cookeville, TN | 7 | Person page FUZZY medium confidence | PVGPATDIS, file of 2026-04-10 |
| Thomas H. Jones | Cookeville, TN | 10 | PVGPATDIS, file of 2026-04-10 | |
| Ross Alan Binkley | Cookeville, TN | 5 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H04L | Transmission of digital information, e.g. telegraphic communication | H04L67/75 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2019-01-20 | Assignment Assignment of assignor's interest | BINKLEY, ROSS signed 2019-01-11 JONES, THOMAS signed 2019-01-11 BARSUMIAN, BRUCE signed 2019-01-18 | RESEARCH ELECTRONICS INTERNATIONAL, LLC COOKEVILLE, TN | 48064/379 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.