Peter D Levin

Address:

16 Downing Rd, Brookline, MA 02445

Phone:

6175104742

VIN:

YV4CZ982671347119

Make:

VOLVO

Model:

XC90

Year:

2007

US Patent:

6928609, Aug 9, 2005

Filed:

Jan 16, 2001

Appl. No.:

09/764772

Inventors:

Daniel S. Bricklin - Newton MA, US
Peter Levin - Watertown MA, US
Micah Zimring - Boston MA, US
Winslow B. Kelley - Natick MA, US
George Adams - Lincoln MA, US

Assignee:

Interland, Inc. - Atlanta GA

International Classification:

G06F017/00

US Classification:

7155011

Abstract:

The present invention comprises a novel system for authoring and publishing hypermedia works. The present invention includes a scrollable contents map window in which a graphical representation of a hypermedia work is displayed. The contents map window contains graphical lexia symbols representing the lexia of the hypermedia work, empty space, and other graphical and text elements. Links between lexia are not ordinarily displayed. Selecting a lexia symbol causes the corresponding lexia to be displayed in a lexia display window. The lexia symbols representing lexia may be arranged in the window in any configuration. Freely movable text labels and other graphical elements may be placed anywhere in the contents map window. Additional special purpose graphical elements may be placed in the contents map window to create relationships among lexia. In one embodiment, a number of different modes of the contents map window can be displayed.

US Patent:

7969354, Jun 28, 2011

Filed:

Feb 2, 2008

Appl. No.:

12/012412

Inventors:

Peter Levin - Newtonville MA, US
David S. De Lorenzo - Palo Alto CA, US
Per K. Enge - Mountain View CA, US
Sherman C. Lo - San Mateo CA, US

International Classification:

G01S 19/21
G01S 19/20

US Classification:

34235759, 34235758

Abstract:

Authentication of a signal, signal, that is provided as having been received from a source at a first global location by comparing it to a signal that is received from the source at a second global location, signal, where signalcontains an unknown signal that is unique to the source, and determining, that signalcontains the same unknown signal that is contained in signal.

US Patent:

8068054, Nov 29, 2011

Filed:

Feb 2, 2008

Appl. No.:

12/012470

Inventors:

Peter Levin - Newtonville MA, US
David S. De Lorenzo - Palo Alto CA, US
Per K. Enge - Mountain View CA, US
Sherman C. Lo - San Mateo CA, US

Assignee:

Zanio, Inc. - Newtonville MA

International Classification:

G01S 19/03
G01S 19/09
G01S 19/32

US Classification:

3423574, 34235746, 34235772

Abstract:

A receiver that receives a plurality of signals that are modulated with a common carrier, where each signal of said signals originates at a different source and experiences a transit delay and Doppler frequency shift before reaching the receiver, and where the transit delay and Doppler frequency shift are related to position and movement of each of the respective sources. The receiver includes means, such as a directional antenna, to ensure that the received signals are bona fide, or at least not subject to the same bogus signal or signals to which a second receiver may be subjected.

US Patent:

8068533, Nov 29, 2011

Filed:

Feb 2, 2008

Appl. No.:

12/012415

Inventors:

Peter Levin - Newtonville MA, US
David S. De Lorenzo - Palo Alto CA, US
Per K. Enge - Mountain View CA, US
Sherman C. Lo - San Mateo CA, US

Assignee:

Zanio, Inc. - Newtonville MA

International Classification:

H04B 1/00

US Classification:

375147

Abstract:

A module for receiving a plurality of signals that are modulated with a common carrier, where each of the signals includes information that enables a determination of a distance from said receiver to a source that transmits the signal, and outputs to outside the module a digital representation of a downshifted replica of the received signals or, alternatively, outputs a stored and delayed version of the downshifted replica of the received signals together with information about the delay.

US Patent:

8068534, Nov 29, 2011

Filed:

Feb 2, 2008

Appl. No.:

12/012416

Inventors:

Peter Levin - Newtonville MA, US
David S. De Lorenzo - Palo Alto CA, US
Per K. Enge - Mountain View CA, US
Sherman C. Lo - San Mateo CA, US

International Classification:

H04B 1/00

US Classification:

375147, 375130

Abstract:

Authentication of a signal, signal, that is provided as having been received from a source at a first global location by comparing it to a signal that is received from the source at a second global location, signal, where signalcontains an unknown signal that is unique to the source, and determining that signalcontains the same unknown signal that is contained in signal.

US Patent:

20050223311, Oct 6, 2005

Filed:

Jun 3, 2005

Appl. No.:

11/144989

Inventors:

Daniel Bricklin - Newton MA, US
Peter Levin - Watertown MA, US
Micah Zimring - Boston MA, US
Winslow Kelley - Natick MA, US
George Adams - Lincoln MA, US

International Classification:

G06F017/00

US Classification:

715501100

Abstract:

The present invention comprises a novel system for authoring and publishing hypermedia works. The present invention includes a scrollable contents map window in which a graphical representation of a hypermedia work is displayed. The contents map window contains graphical lexia symbols representing the lexia of the hypermedia work, empty space, and other graphical and text elements. Links between lexia are not ordinarily displayed. Selecting a lexia symbol causes the corresponding lexia to be displayed in a lexia display window. The lexia symbols representing lexia may be arranged in the window in any configuration. Freely movable text labels and other graphical elements may be placed anywhere in the contents map window. Additional special purpose graphical elements may be placed in the contents map window to create relationships among lexia. In one embodiment, a number of different modes of the contents map window can be displayed. One mode is a caricature mode. In caricature mode, lexia are represented by novel, information rich, dynamic lexia symbols with enhanced mnemonic features and visual cues called “caricatures”. The mnemonic features and visual cues of a caricature, together with its position with respect to other elements in the contents map, provide means for uniquely visually identifying the underlying lexia. One embodiment of the invention includes a search function that allows an author or a reader to search some or all of the lexia of a work for specific words, phrases, or other items such as links. Lexia symbols of each lexia containing the searched for text are highlighted in the contents map window.

US Patent:

20090195354, Aug 6, 2009

Filed:

Feb 2, 2008

Appl. No.:

12/012327

Inventors:

Peter Levin - Newtonville MA, US
David S. De Lorenzo - Palo Alto CA, US
Per K. Enge - Mountain CA, US
Sherman C. Lo - San Mateo CA, US

International Classification:

H04B 3/00
G05B 19/00

US Classification:

340 58

Abstract:

Authentication of a signal, signal, that is provided as having been received from a source at a first global location by comparing it to a signal that is received from the source at a second global location, signal, where signalcontains an unknown signal that is unique to the source, and determining that signalcontains the same unknown signal that is contained in signal.

US Patent:

20100241864, Sep 23, 2010

Filed:

Nov 20, 2009

Appl. No.:

12/623216

Inventors:

Jim KELLEY - Boston MA, US
Per K. ENGE - Mountain View CA, US
Peter L. LEVIN - Silver Spring MD, US
Sherman C. LO - San Mateo CA, US
David S. DE LORENZO - Palo Alto CA, US

Assignee:

DAFCA, INC. - Framingham MA

International Classification:

H04L 9/32
G01S 19/42

US Classification:

713179, 34235725

Abstract:

Exemplary embodiments provide methods and systems of authenticating an integrated circuit (IC). The manufacturing location of an IC is authenticated by storing in the IC a local signature derived from a GPS signal that was received at the manufacturing location at the time of manufacture. A remote signature is derived from a GPS signal that was received at a remote site nearly simultaneously as the reception of the GPS signal at the manufacturing location. The local signature is compared to the remote signature at an authentication site to determine the authenticity of the IC.