Andrew T Berman

Address:

424 Woodbridge Rd, Rockville Centre, NY 11570

Phone:

5162420028

VIN:

1G1PC5SH5C7208871

Make:

CHEVROLET

Model:

CRUZE

Year:

2012

US Patent:

20020002550, Jan 3, 2002

Filed:

Feb 7, 2001

Appl. No.:

09/779019

Inventors:

Andrew Berman - Tenafly NJ, US

International Classification:

G06F007/00

US Classification:

707/003000, 707/104100

Abstract:

A method and system for retrieving database records, based on a close match to a specified query record, using a distance measure to determine the closeness of the match. The method employs a two-stage process to reduce the number of direct comparisons required. In a first stage, a triangle trie for a single distance measure is pruned to reduce a number of potential matches. The result obtained from pruning the triangle trie is further pruned by employing indexed tables generated using a triangle inequality technique. The members of this small set are then directly compared to the query record to identify matches within at least a specified degree of closeness. Multiple triangle tries can be combined to enable threshold searches over a composite measure. Operations, including Min, Max, Sum, and Weight are combined to produce more complex composite distance functions for use in the process.

US Patent:

20220303502, Sep 22, 2022

Filed:

Jun 9, 2022

Appl. No.:

17/836768

Inventors:

- New York NY, US
Andrew Berman - New York NY, US
Matthew Slotkin - New York NY, US
Jiancheng Zhu - Shanghai, CN
Benjamin Kempe - Berlin, DE

Assignee:

Vowel, Inc. - New York NY

International Classification:

H04N 7/15
H04N 7/14
H04L 67/104
H04R 3/00
G10L 15/26

Abstract:

In conventional audio and video conferencing, connecting the devices of participants in the same room to the conference can degrade the audio quality for every conference participant. Different speakers emit the same audio signals at different times, even in the same room, making echo cancellation difficult or impossible. Routing signals among devices in the same consumes bandwidth and introduces variable latency. The inventive conferencing technology eliminates these problems with more intelligent routing and mixing. An inventive conference bridge organize colocated clients into groups, picks one Elected Speaker per group, and sends signals to only the Elected Speakers. The Elected Speakers mix audio from other groups, share it within their groups using low-latency local connections, and play the audio after a delay. The other speakers may play the audio too and use the distributed mixes for automatic echo cancellation, improving call quality in real-time, and send the processed audio directly back to the bridge.