H04N 21/647

Control signaling between network components and server or clients

Official title: Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless {(real-time session protocols H04L65/1101)}

H04N21/647 (Control signaling between network components and server or clients) appears on 2,320 US grants and 2,796 published applications in this corpus.

Search patents in H04N
Granted patents
2,320
Published applications
2,796
Assignees
779
Inventors
4,601
Latest grant
29 Sep 2026

Filings by year

H04N 21/647: granted patents and published applications per publication year
YearGranted patentsPublished applications
199520
199670
199740
199850
199940
200040
2001912
2002663
20031244
20041753
20051760
20063283
20072387
20082984
200947109
201067110
20116886
201271114
201385172
2014156182
2015163238
2016177186
2017210145
2018149134
2019164124
2020154135
2021119131
2022138136
2023134122
202411086
20259658
20264142

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

Subgroups

Granted patents

Recent patents

Most cited

By later US patents