JOHN WINSOR LOVELL
Pilots at Bridle Path, Sherborn, MA

License number
Massachusetts A1150457
Issued Date
Oct 2015
Expiration Date
Oct 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
1 Bridle Path, Sherborn, MA 01770

Professional information

John Lovell Photo 1

Method And Apparatus For Calculating The Number Of Very High Speed Digital Subscriber Line Nodes

US Patent:
6768777, Jul 27, 2004
Filed:
Jun 27, 2000
Appl. No.:
09/604230
Inventors:
Michael Cooperman - Framingham MA
Albert M. Forcucci - Roslindale MA
John W. Lovell - Sherborn MA
Craig A. Armiento - Acton MA
Assignee:
Verizon Corporate Services Group Inc. - New York NY
Genuity Inc. - Cambridge MA
International Classification:
H04B 300
US Classification:
375257, 375222, 375377, 37939901
Abstract:
A method is provided for estimating a number of digital subscriber line nodes ( ) required to supply, from a line supply source ( ), a geographically distributed network of substantially sequentially numbered twisted pair lines with digital subscriber line service. The method comprises the steps of: storing, in number order, data entries for every twisted pair line of the network, each data entry comprising a pair number and a line length of the respective twisted pair line in relation to the line supply source ( ); sorting the entries stored in the database by line length; isolating those sorted entries whose twisted pair lines have a line length greater than a predetermined maximum line length in relation to the line supply source ( ); sorting the isolated entries by number; and discriminating, from the sorted isolated entries, the presence of discrete groupings of substantially contiguous entries.


John Lovell Photo 2

Network Interface

US Patent:
6707913, Mar 16, 2004
Filed:
Apr 11, 2000
Appl. No.:
09/546584
Inventors:
Warner Harrison - Medfield MA
John W. Lovell - Sherborn MA
Assignee:
Verizon Laboratories Inc. - Waltham MA
International Classification:
H04M 100
US Classification:
37941302, 37939901
Abstract:
A telephone network interface device that provides at least two drop-wire connection ports and two distribution cable ports. One drop wire port provides full bandwidth service with the second port providing telephone service only, reducing radio frequency ingress and egress magnitudes. Bridging options allow limited bandwidth or full bandwidth communication between distribution cable ports.


John Lovell Photo 3

Apparatus And Method For Assessing Leakage From Cable Networks

US Patent:
6553098, Apr 22, 2003
Filed:
Apr 11, 2000
Appl. No.:
09/546968
Inventors:
Warner George Harrison - Medfield MA
John Winsor Lovell - Sherborn MA
Assignee:
Verizon Laboratories Inc. - Waltham MA
International Classification:
H04M 124
US Classification:
379 2203, 379 103, 379 104, 379 2204, 379 2701, 379 2901
Abstract:
An apparatus for assessing signal coupling and radiation from cable networks by exciting the network with multiple broadband signals modulated by a common source, the networks having a plurality of channels, including a noise generator to generate a plurality of test signals, a plurality of modulators, each coupled to one of the plurality of channels, for modulating the plurality of test signals, and a control apparatus coupled to the plurality of modulators for controlling coupling and decoupling of each of the plurality of channels to the signal generating means.


John Lovell Photo 4

Acquisition Apparatus For Dsss Communications

US Patent:
5313490, May 17, 1994
Filed:
Dec 31, 1992
Appl. No.:
7/999643
Inventors:
Karen M. Schramm - Needham MA
William E. DeLisle - Milford MA
John W. Lovell - Sherborn MA
Assignee:
GTE Government Systems Corporation - Waltham MA
International Classification:
H04L 2730
US Classification:
375 1
Abstract:
Apparatus for indicating the end of an acquisition procedure between a transmitter and receiver in a direct sequence spread spectrum communications system. A transmitter generates a first acquisition code having a first acquisition code period and comprised of digital bits at a first bit rate. A circuit modulates the first digital acquisition code by a pseudo-noise code repeating at a pseudo-noise code period and consisting of a sequence of chips at a chip rate greater than the first bit rate. The first acquisition code period is an integer multiple of the pseudo-noise code period. A circuit modulates a carrier by the first digital acquisition code modulated by the pseudo-noise code. The carrier modulated by said first digital acquisition code modulated by said pseudo-noise code is transmitted for a first period of time. A circuit synchronizes a receiver to the chip rate and carrier frequency.


John Lovell Photo 5

Apparatus For Multipath Dsss Communications

US Patent:
5349606, Sep 20, 1994
Filed:
Dec 31, 1992
Appl. No.:
7/999507
Inventors:
John W. Lovell - Sherborn MA
Karen M. Schramm - Needham MA
William E. DeLisle - Milford MA
Assignee:
GTE Government Systems Corporation - Waltham MA
International Classification:
H04L 2730, H04B 110
US Classification:
375 1
Abstract:
Circuit for recovery of a plurality of multipath direct sequence spread spectrum signal components received over a time span, wherein the multipath signal components are components of a signal generated from digital data comprised of data bits at a data bit rate modulated by a pseudo-noise code, consisting of a sequence of chips having a chip rate greater than the data bit rate, wherein the sequence of chips is a code repetition period equal or greater than the received time span of the multipath signal components. A plurality of correlators is provided. Each correlator has a first input for coupling to the multipath signal components, a second input, and an output. A pseudo-noise code generator generates a duplicate of the pseudo-noise code. A time delayer is coupled between the second inputs of a mulitiplicity of the correlators and the pseudo-noise code generator for delaying the duplicate of the pseudo-noise code by a multiple of a time delay equal to the time of a chip duration or less. A signal combiner is coupled to the plurality of phase correcting devices.


John Lovell Photo 6

Apparatus And Method For Installing Non-Bridged Telecommunication Access Lines

US Patent:
6203357, Mar 20, 2001
Filed:
Aug 25, 1999
Appl. No.:
9/383058
Inventors:
John Winsor Lovell - Sherborn MA
Warner George Harrison - Medfield MA
Assignee:
Verizon Laboratories Inc. - Waltham MA
International Classification:
H01R 424
US Classification:
439404
Abstract:
A connector for cutting and connecting an insulated cable having an insulation layer encasing at least one conductor that includes an upper member, and a lower member adapted for receiving the upper member including at least one insulation displacement connector to establish electrical connection with the conductor of the insulated cable, an instrument with a sharp edge to sever the conductor, and a rigid member to separate one end of the severed conductor from the other end of the severed conductor, wherein the upper member and the lower member secure both ends of the severed cable, to electrically connect a distribution cable to local terminals of access lines or subscriber lines and simultaneously cut the distribution cable to remove a bridged tap from the subscriber lines. The connector may additionally include a second blade and second plurality of insulation displacement connectors to allow the installation of terminal taps on both the Central Office side and field side, the connections of the latter being reserved for future use.


John Lovell Photo 7

Acquisition Method For Dsss Communications

US Patent:
5313491, May 17, 1994
Filed:
Dec 31, 1992
Appl. No.:
7/999242
Inventors:
Karen M. Schramm - Needham MA
William E. DeLisle - Milford MA
John W. Lovell - Sherborn MA
Assignee:
GTE Government Systems Corporation - Waltham MA
International Classification:
H04L 2730
US Classification:
375 1
Abstract:
Method for indicating the end of an acquisition procedure between a transmitter and receiver in a direct sequence spread spectrum communications system. At a transmitter, a first acquisition code having a first acquisition code period and comprised of digital bits at a first bit rate is generated. The first digital acquisition code is modulated by a pseudo-noise code repeating at a pseudo-noise code period and consisting of a sequence of chips at a chip rate greater than the first bit rate, and wherein the first acquisition code period is an integer multiple of the pseudo-noise code period. A carrier frequency is modulated by the first digital acquisition code modulated by the pseudo-noise code. The carrier is modulated by the first digital acquisition code modulated by the pseudo-noise code is transmitted for a first period of time. A receiver is synchronized to the chip rate and carrier frequency, then to the pseudo-noise code period, next to the period of the data bit rate, and then to the first acquisition code period.


John Lovell Photo 8

Dsss Communications Correlation

US Patent:
5315615, May 24, 1994
Filed:
Dec 31, 1992
Appl. No.:
7/999040
Inventors:
William E. DeLisle - Milford MA
John W. Lovell - Sherborn MA
Assignee:
GTE Government Systems Corporation - Waltham MA
International Classification:
H04L 2730
US Classification:
375 1
Abstract:
Method of processing a direct sequence spread spectrum communication system signal wherein digital data comprised of data bits is modulated by a first pseudo-noise code comprised of a sequence of chips, the pseudo-noise chip rate greater than said date bit rate, each chip having a chip period, said sequence repeating at a code period, and the pseudo-noise modulated data modualates a carrier frequency resulting in the signal. Digital samples are made of the signal. A second pseudo-noise code replicates the first pseudo-noise code. A first correlation is made of the sampled signal and the second pseudo-noise code. A second correlation is made of the sampled signal and the second pseudo-noise code delayed by one chip period. A first correlated signal energy value represents the signal energy of the first correlation. A second correlated signal energy value represents the signal energy of the second correlation.


John Lovell Photo 9

Method Of Multipath Dsss Communications

US Patent:
5343495, Aug 30, 1994
Filed:
Dec 31, 1992
Appl. No.:
7/999038
Inventors:
John W. Lovell - Sherborn MA
William E. DeLisle - Milford MA
Assignee:
GTE Government Systems Corporation - Waltham MA
International Classification:
H04L 2730
US Classification:
375 1
Abstract:
Method of demodulating a signal including a plurality of time-dispersed signal components such as resulting from receiving in a multipath environment. A plurality of correlators are provided. The period of expected time uncertainty is scanned to identify the highest energy signal components. Each correlator is assigned to process one of the highest energy signal components. Each of the correlator outputs is pase corrected to compensate for carrier phase differences. The correlator outputs are coherently combined to provide a data output.


John Lovell Photo 10

Correlator For Dsss Communications

US Patent:
5315616, May 24, 1994
Filed:
Dec 31, 1992
Appl. No.:
7/999505
Inventors:
William E. DeLisle - Milford MA
John W. Lovell - Sherborn MA
Assignee:
GTE Government Systems Corporation - Waltham MA
International Classification:
H04L 2730
US Classification:
375 1
Abstract:
A correlator for processing a direct sequence spread spectrum communication system signal, wherein digital data comprised of data bits at a data bit rate is modulated by a first pseudo-noise code comprised of a sequence of chips having a pseudo-noise chip rate greater than the data bit rate, each chip having a chip period, the sequence repeating at a code period, and the pseudo-noise modulated data modulates a carrier resulting in the signal. A sampler produces digital samples of the signal. A pseudo-noise code generator produces a second pseudo-noise code replicating the first pseudo-noise code. Circuity time syncronizes the second pseudo-noise code to maximize a combined value of correlated signal energy, thereby time locking the first pseudo-noise code and the second pseudo-noise code.