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Jon S Rachwalski

from Philadelphia, PA
Age ~48
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Also known as:
Jon I
Phone and address:
4623 Cedar Ave, Philadelphia, PA 19143
Related to:
Raymond R RachwalskiAdam Rachwalski, 61Javier RachwalskiScott L Rachwalski, 46Theodore C Rachwalski, 78Ellen J Rachwalski, 78
Connected to:
Cheryl Rachwal, 48David M Rachwal, 37Genowefa A Rachwal, 69Joanna Rachwal, 46Kamil S Rachwal, 64Laura Rachwal, 66Tyler E Rachwal, 35Elizabeth C Rachwitz, 54Lynn E Rachwitz, 74Mark P Raciappa, 68

Jon Rachwalski Phones & Addresses

  • 4623 Cedar Ave, Philadelphia, PA 19143
  • New York, NY
  • Jersey City, NJ
  • 6134 Grand Ave, Downers Grove, IL 60516 (630) 964-5503
  • Holbrook, NY
  • Urbana, IL
  • Champaign, IL

Resumes

Resumes

Jon Rachwalski Photo 1

Senior Software Engineer

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Location:
1720 Spruce Dr, Holbrook, NY 11741
Industry:
Computer Software
Work:
Bloomberg since Feb 2009
Senior Software Engineer
VectorMAX Sep 2002 - Oct 2008
Software Engineering Manager, TV Anywhere
Tellabs Sep 1998 - Mar 2002
Member of Technical Staff II
Education:
University of Illinois at Urbana-Champaign 1996 - 1998
BS, Computer Engineering
Jon Rachwalski Photo 2

Jon Rachwalski

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Jon Rachwalski Photo 3

Jon Rachwalski

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Publications

Us Patents

Method And System For Loss-Tolerant Multimedia Multicasting

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US Patent:
7978761, Jul 12, 2011
Filed:
Oct 5, 2005
Appl. No.:
11/244444
Inventors:
Jon Rachwalski - Holbrook NY, US
Daniel Witt - Center Moriches NY, US
Assignee:
VectorMAX Corporation - Farmingdale NY
International Classification:
H04B 1/66
US Classification:
375240, 375429, 348469
Abstract:
A method and system are provided for ordering datagrams within an encoded datastream. The system includes a parser for separating headers from each respective datagram. A decoder decodes the separated headers to determine a frame group, a frame number within the frame group, a datagram number within the frame; and a total number of datagrams within the frame. An address generator determines a position for each datagram within the datastream and orders the datagrams within the datastream in response to decoding of the header to produce a video data stream.

Method And System For Authorizing Multimedia Multicasting

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US Patent:
8056139, Nov 8, 2011
Filed:
Oct 5, 2005
Appl. No.:
11/244443
Inventors:
Daniel Witt - Center Moriches NY, US
Jon Rachwalski - Holbrook NY, US
Assignee:
VectorMAX Corporation - Farmingdale NY
International Classification:
G06F 7/04
US Classification:
726 26, 726 5, 726 28, 726 29, 709231, 709227, 709228, 709229, 707E17009
Abstract:
A multicasting authorization system comprises a streaming server, an authorization server, a user system and a distribution server. The distribution server provides a multicast data stream over multicast channels. A user system requests and receives an authorization code from an authorization server to receive the multicast data stream, and provides the authorization code to a streaming server. A streaming server, coupled to both an authorization server and a user system sends start up information for accessing the multicast data stream to the user system upon validation of the authorization code. The multicast datastream is encrypted and the user system maintains a connection with the authorization server which provides a cryptographic key for use in decrypting the encrypted multicast datastream.

Method And Apparatus For Interdomain Multicast Routing

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US Patent:
8179891, May 15, 2012
Filed:
Jan 25, 2007
Appl. No.:
11/626889
Inventors:
Jon Rachwalski - Holbrook NY, US
Daniel Witt - Center Moriches NY, US
Assignee:
VectorMAX Corporation - Farmingdale NY
International Classification:
H04L 12/56
US Classification:
370390, 370230, 370232, 370235, 370254, 370256, 370218, 370312, 370341, 370342, 370310, 370392, 37039531, 370401, 370432, 709203, 709219, 709213, 709225, 709227, 709231, 709236, 709238
Abstract:
An apparatus bridges a plurality of domains and routes multicast datastreams between them. The apparatus includes a receiver which receives a client request signal via a multicast access protocol from a user connected within a first domain. A transmitter requests multicast content using a multicast transmission protocol from a provider within a second domain. A processor processes the multicast content received from the provider. The transmitter relays the multicast content from the second domain to the first domain for access by the user.

Method And System For Broadcasting Multimedia Data

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US Patent:
8230097, Jul 24, 2012
Filed:
Oct 5, 2005
Appl. No.:
11/244442
Inventors:
Jon Rachwalski - Holbrook NY, US
Daniel Witt - Center Moriches NY, US
Assignee:
VectorMAX Corporation - Farmingdale NY
International Classification:
G06F 15/16
H04L 12/28
H04J 3/26
US Classification:
709231, 709227, 370390, 370432
Abstract:
A broadcast system provides support for clients to receive transmissions over a unicast or a multicast channel from a broadcast server. A server administrator configures each of a first server and client systems connected to the server to receive data in one of a multicast or unicast transmission mode. An empirical test determines whether an intervening network can support the configured mode and if not, transmission is performed using a fall back mode. The first server is able to provide access to data streams from other servers to the client systems connected thereto. Upon requesting a data stream from another server, the first server receives the data stream, replicates the data stream, transmits the data stream to the requesting client system and stores the replicated data stream for immediate access by any requesting client server connected thereto.

Interactive Video Collaboration Framework

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US Patent:
8255552, Aug 28, 2012
Filed:
Oct 5, 2005
Appl. No.:
11/245458
Inventors:
Daniel Witt - Center Moriches NY, US
Jon Rachwalski - Holbrook NY, US
Evgeny Nechaev - Babylon NY, US
Jun Zhang - Huntington Station NY, US
Assignee:
VectorMAX Corporation - Farmingdale NY
International Classification:
G06F 15/16
US Classification:
709231, 709204, 709205, 709230
Abstract:
A system for providing interactive collaboration between a plurality of users. The system includes a profile respository for storing a priority level for each of said plurality of users and providing addresses for accessing each of said plurality of users. A media content server indexes audio and video data within the system. A data server stores the audio and video data at locations identified by indexing data located at the media content server. An acquisition processor provides audio and video data streams to requesting ones of the plurality of users. Audio and video data streams are located based on indexing data within the media content server and accessed according to a priority level for each requesting user. A communication processor controls bidirectional communication between requesting users according to the priority level for each requesting user.

System And Method For Identifying And Processing Data Within A Data Stream

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US Patent:
20060087457, Apr 27, 2006
Filed:
Oct 5, 2005
Appl. No.:
11/245460
Inventors:
Jon Rachwalski - Holbrook NY, US
Daniel Witt - Center Moriches NY, US
International Classification:
H03M 7/00
US Classification:
341050000
Abstract:
A system involves encoding a video data stream. The system includes a first determinator for determining attributes associated with the video data stream and an encoder for receiving the attributes from the first determinator and encoding a stream header identifying stream syntax. The stream header is encoded in a markup language. A multiplexer combines the encoded stream headers with the video data stream.

Method And System For Broadcasting Multimedia Data

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US Patent:
20130144936, Jun 6, 2013
Filed:
Jul 23, 2012
Appl. No.:
13/555967
Inventors:
Jon Rachwalski - Holbrook NY, US
Daniel Witt - Center Moriches NY, US
International Classification:
H04L 29/06
US Classification:
709203
Abstract:
A broadcast system provides support for clients to receive transmissions over a unicast or a multicast channel from a broadcast server. A server administrator configures each of a first server and client systems connected to the server to receive data in one of a multicast or unicast transmission mode. An empirical test determines whether an intervening network can support the configured mode and if not, transmission is performed using a fall back mode. The first server is able to provide access to data streams from other servers to the client systems connected thereto. Upon requesting a data stream from another server, the first server receives the data stream, replicates the data stream, transmits the data stream to the requesting client system and stores the replicated data stream for immediate access by any requesting client server connected thereto.

Interactive Video Collaboration Framework

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US Patent:
20130169741, Jul 4, 2013
Filed:
Aug 27, 2012
Appl. No.:
13/595796
Inventors:
Daniel Witt - Center Moriches NY, US
Jon Rachwalski - Holbrook NY, US
Evgeny Nechaev - Babylon NY, US
Jun Zhang - Huntington Station NY, US
International Classification:
H04N 7/15
US Classification:
348 1407
Abstract:
A system for providing interactive collaboration between a plurality of users. The system includes a profile respository for storing a priority level for each of said plurality of users and providing addresses for accessing each of said plurality of users. A media content server indexes audio and video data within the system. A data server stores the audio and video data at locations identified by indexing data located at the media content server. An acquisition processor provides audio and video data streams to requesting ones of the plurality of users. Audio and video data streams are located based on indexing data within the media content server and accessed according to a priority level for each requesting user. A communication processor controls bidirectional communication between requesting users according to the priority level for each requesting user.
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Jon S Rachwalski from Philadelphia, PA, age ~48 Get Report