Charles Stuart Stone

US Patent:

6577201, Jun 10, 2003

Filed:

Dec 17, 2001

Appl. No.:

10/023954

Inventors:

John C. Ho - Woodbury NY
Charles Stone - Kings Park NY
Thomas McClelland - Northport NY

Assignee:

Frequency Electronics, Inc. - Northport NY

International Classification:

H03L 706

US Classification:

331 16, 331 25, 331 66, 327156, 375376

Abstract:

A precision oven-controlled crystal oscillator (OCXO) uses an adjustment feedback signal that, when mixed with a reference signal from a stable reference oscillator, accurately controls the generation of an output signal from a voltage controlled crystal oscillator (VCXO). An OCXO according to the invention has high stability and high accuracy. The digital OXCO can be manufactured at low cost, and is particularly beneficial for Code Division Multiple Access (CDMA) base station applications in cellular communication networks an the like.

US Patent:

6753737, Jun 22, 2004

Filed:

Mar 17, 2003

Appl. No.:

10/390557

Inventors:

John C. Ho - Woodbury NY
Charles Stone - Kings Park NY
Thomas McClelland - Northport NY

Assignee:

Frequency Electronics, Inc. - Mitchel Field NY

International Classification:

H03L 706

US Classification:

331 16, 331 25, 331 66, 327156, 375376

Abstract:

A precision oven-controlled crystal oscillator (OCXO) uses an adjustment feedback signal that, when mixed with a reference signal from a stable reference oscillator, accurately controls the generation of an output signal from a voltage controlled crystal oscillator (VCXO). An OCXO according to the invention has high stability and high accuracy. The digital OXCO can be manufactured at low cost, and is particularly beneficial for Code Division Multiple Access (CDMA) base station applications in cellular communication networks an the like.

US Patent:

20080251121, Oct 16, 2008

Filed:

Apr 12, 2007

Appl. No.:

11/786916

Inventors:

Charles Stone - Cedar Park TX, US

International Classification:

H01L 31/0216
H01L 31/09

US Classification:

136256, 438 71, 438 80, 257E31093

Abstract:

One embodiment relates to a structure for a solar cell. The structure includes a silicon substrate with P-type and N-type active diffusion regions therein. An oxynitride passivation layer is included at least over the P-type and N-type active diffusion regions. The structure further includes contact openings through the oxynitride passivation layer to the P-type and N-type active diffusion regions, and metal grid lines which selectively contact the P-type and N-type active diffusion regions by way of the contact openings. Another embodiment relates to a method of fabricating a solar cell. Other embodiments, aspects and features are also disclosed.

US Patent:

20140000695, Jan 2, 2014

Filed:

May 30, 2013

Appl. No.:

13/905504

Inventors:

Charles Norman STONE - Cedar Park TX, US

International Classification:

H01L 31/0224
H01L 31/18

US Classification:

136256, 438 98

Abstract:

A method for manufacturing solar cells is disclosed. The method includes forming an insulating material in a printable suspension along the at least one side edge of a solar cell, the insulating material in a printable suspension further adapted to form a protective film which reduces cracking near at least one side edge of the solar cell and improve structural integrity against mechanical stress. The protective film has an elastic modulus of at least 3 GPa, an elongation break point of at least 13 percent and a glass transition temperature of at least 250 degrees Celsius which provides additional structural support along the side edges, increasing the overall structural integrity, providing electrical insulation along the edges and improve the flexure strength of the solar cell.

US Patent:

53091167, May 3, 1994

Filed:

Nov 2, 1992

Appl. No.:

7/970701

Inventors:

Charles S. Stone - Cedar Park TX

Assignee:

Frequency Electronics, Inc. - Mitchel Field NY

International Classification:

H03B 536
H03B 2101
H03B 2500

US Classification:

331 37

Abstract:

A multimode oscillator is disclosed which employs a single gain loop for exciting at least two modes of a resonator to cause the oscillator to oscillate simultaneously at at least two frequencies. The multimode oscillator comprises the resonator, an amplifier to provide gain at the appropriate operating frequencies to support simultaneous oscillation at such frequencies and an equalizing network with amplitude and phase characteristics versus frequency to support the simultaneous modes of oscillation. The single loop oscillator permits separate control of the two simultaneous different frequencies of oscillation. In order to minimize thermal hysteresis, at least the active portion of the feedback loop does not include inductors. In some applications, the multimode oscillator may include one or more rejection networks to suppress unwanted oscillations. The useful outputs of the multimode oscillator are one or more of the operating frequencies, harmonics and intermodulation products.

US Patent:

51609010, Nov 3, 1992

Filed:

Sep 13, 1990

Appl. No.:

7/581672

Inventors:

Charles S. Stone - Cedar Park TX

Assignee:

Frequency Electronics, Inc. - Mitchel Field NY

International Classification:

H03B 536
H03B 2101
H03B 2500

US Classification:

331 37

Abstract:

A multimode oscillator is disclosed which employs a single gain feedback loop for exciting at least two modes of a resonator to cause the oscillator to oscillate simultaneously at at least two frequencies. The multi-mode oscillator comprises the resonator, an amplifier to provide gain at the appropriate operating frequencies to support simultaneous oscillation at such frequencies and an equalizing network with amplitude and phase characteristics versus frequency to support the simultaneous modes of oscillation. The single loop oscillator permits separate control of the two simultaneous different frequencies of oscillation. In order to minimize thermal hysteresis, at least the active portion of the feedback loop does not include inductors. In some applications, the multimode oscillator may include one or more rejection networks to suppress unwanted oscillations. The useful outputs of the multimode oscillator are one or more of the operating frequencies, harmonics and intermodulation products.

US Patent:

53574281, Oct 18, 1994

Filed:

Apr 5, 1993

Appl. No.:

8/042821

Inventors:

Charles L. Stone - Darien CT

Assignee:

Micro-Tek, Inc. - Westport CT

International Classification:

G06F 1542
A61B 504

US Classification:

36441305

Abstract:

A system for mapping and/or displaying spatio-temporal features of underlying event-related neural activity involves measuring the event-related evoked potential values at a limited number of points over the region of interest, deriving a first grid of potential values at points over the area of interest representing at least a tenfold increase in the number of points by a Kriging-type of spatial statistical interpolation, and using the first grid to derive for the region of interest a second grid of points current density values by a Laplacian conversion. A plurality of second grids of current density values spaced apart in time are derived and displayed on a monitor in cartoon-type fashion to provide a cartoon-type display of the features of the event-related evoked response over the region of interest varying with time. Various other displays are possible for highlighting specific features.

US Patent:

52474364, Sep 21, 1993

Filed:

Sep 20, 1991

Appl. No.:

7/763862

Inventors:

Charles L. Stone - Darien CT

Assignee:

Micro-Tek, Inc. - Westport CT

International Classification:

G06F 1542
A61B 504

US Classification:

36441305

Abstract:

A system for mapping and/or displaying spatiotemporal features of underlying event-related neural activity involves measuring the event-related evoked potential values at a limited number of points over the region of interest, deriving a first grid of potential values at points over the area of interest representing at least about a five fold increase in the number of points by a Kriging-type of spatial statistical interpolation, and using the first grid to derive for the region of interest a second grid of points of current density values by a Laplacian conversion. A plurality of second grids of current density values spaced apart in time are derived and displayed on a monitor in cartoon-type fashion to provide a cartoon-type display of the features of the event-related evoked response over the region of interest varying with time. Various other displays are possible for highlighting specific features.