DANA JOHN TAIPALE
Pilots at Floral Park Dr, Austin, TX
License number
Texas A5167923
Issued Date
Feb 2016
Expiration Date
Feb 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
10503 Floral Park Dr, Austin, TX 78759
Professional information
Dynamic Time Alignment Of Audio Signals In Simulcast Radio Receivers
US Patent:
2013000, Jan 3, 2013
Filed:
Jun 29, 2011
Appl. No.:
13/172110
Inventors:
Javier Elenes - Austin TX, US
Dana Taipale - Austin TX, US
Dave Anderton - Austin TX, US
Dana Taipale - Austin TX, US
Dave Anderton - Austin TX, US
International Classification:
H04W 4/00, H04L 27/28, H04H 20/71
US Classification:
370312
Abstract:
A method and apparatus for performing dynamic time alignment of program content extracted from analog and digital radio signals of a simulcast is disclosed. A delay estimation unit of a radio receiver is configured to dynamically determine an amount of received delay between analog-transmitted and digital portions of a radio program. An internal delay to compensate for the received delay may be applied to a data stream corresponding to the portion that is leading. The radio receiver may initially provide audio output from the analog-transmitted portion. In the case of leading analog-transmitted audio, the audio from the analog-transmitted portion may be incrementally delayed to align with the digitally transmitted audio. Once data streams corresponding to the analog-transmitted and digitally transmitted portions are sufficiently aligned in time, a blend operation may be performed. The blend operation may transition the output from being sourced by the analog-transmitted portion to the digitally-transmitted portion.
Method And Apparatus For Determining An Upper Data Rate For A Variable Data Rate Signal
US Patent:
7006439, Feb 28, 2006
Filed:
Apr 24, 2002
Appl. No.:
10/131662
Inventors:
Chris Thron - Austin TX, US
Dipesh Koirala - Austin TX, US
Dana Taipale - Austin TX, US
Dipesh Koirala - Austin TX, US
Dana Taipale - Austin TX, US
Assignee:
Freescale Semiconductor, Inc. - Austin TX
International Classification:
H04L 12/26
US Classification:
370232, 370252, 370335, 370342, 375225
Abstract:
An integrated circuit arranged and constructed to determine an upper data rate for a variable data rate signal and method thereof includes a buffer, comparator, and combiner that are operable to compare a characteristic, such as an energy statistic of a number of partial symbols constructed from the variable data rate signal to a first threshold that corresponds to the number to provide a first comparison; process the variable data rate signal at a first data rate when the first comparison is favorable; compare the characteristic to a second threshold that corresponds to the number to provide a second comparison; and combine the partial symbols to provide other partial symbols at a second data rate that is less than the first data rate when the second comparison is favorable.
Post-Correlation Interpolation For Delay Locked Loops
US Patent:
6959035, Oct 25, 2005
Filed:
Dec 26, 2001
Appl. No.:
10/033513
Inventors:
Dana J. Taipale - Austin TX, US
Dipesh Koirala - Austin TX, US
Dipesh Koirala - Austin TX, US
Assignee:
FreeScale, Inc. - Austin TX
International Classification:
H04B001/69, H04B001/707, H04B001/713
US Classification:
375150, 136142, 136147, 136343, 136373, 136376
Abstract:
A Code Division Multiple Access (CDMA) post-correlation processing system () for delay locked loop processing reduces the control data rate into a delay locked loop (DLL) processor and the number of required interpolation operations by executing a portion of the interpolation operations at a symbol data rate rather than at a chiprate. Specifically, an interpolator () generates time shifted chip samples based on input CDMA chip samples. First and second correlators () extract ontime control and data symbol samples, respectively, from ontime input CDMA chip samples. A third correlator () extracts first non-ontime control symbol samples from non-ontime CDMA chip samples. The first non-ontime control symbol samples are then input with the ontime control symbol samples to a post-correlation interpolator () operating at a symbol rate to generate second non-ontime symbol samples necessary for Delay Locked Loop (DLL) processing.
Controlling Fine Frequency Changes In An Oscillator
US Patent:
8306491, Nov 6, 2012
Filed:
Jul 17, 2009
Appl. No.:
12/504874
Inventors:
Lawrence Der - Austin TX, US
Dana Taipale - Austin TX, US
Scott Willingham - Austin TX, US
Dana Taipale - Austin TX, US
Scott Willingham - Austin TX, US
Assignee:
Silicon Laboratories Inc. - Austin TX
International Classification:
H04B 1/18
US Classification:
4551731, 4551823, 4551821, 331 34, 331 36 R
Abstract:
In one embodiment, the present invention includes a method for determining if a frequency control instruction would cause a first capacitor bank to reach a limit and adjusting the first capacitor bank in a first direction using a calibration value and adjusting a second capacitor bank in a second direction if the first capacitor bank would reach the limit. Furthermore, the calibration value may be calculated and stored in accordance with other embodiments. In such manner, small changes in capacitance and correspondingly small changes in frequency may be effected.
Automatic Volume Control For Amplitude Modulated Signals
US Patent:
7570933, Aug 4, 2009
Filed:
Sep 28, 2006
Appl. No.:
11/529066
Inventors:
Dana Taipale - Austin TX, US
Javier Elenes - Austin TX, US
Javier Elenes - Austin TX, US
Assignee:
Silicon Laboratories Inc. - Austin TX
International Classification:
H04B 1/06
US Classification:
4552321, 455260, 455309
Abstract:
In one aspect, the present invention includes an automatic volume control (AVC) circuit to receive a demodulated signal and provide an output signal at a substantially constant volume. The circuit may be implemented in hardware, software, and/or firmware to perform digital demodulation, programmable amplification, and high pass filtering to provide a substantially constant volume output.
Cancellation Of Undesired Portions Of Audio Signals
US Patent:
8559570, Oct 15, 2013
Filed:
Sep 30, 2005
Appl. No.:
11/241419
Inventors:
Dana Taipale - Austin TX, US
Assignee:
Silicon Laboratories Inc. - Austin TX
International Classification:
H03D 1/04, H03D 1/06, H03K 5/01
US Classification:
375345, 375346, 375362
Abstract:
In one embodiment, the present invention includes a method for determining when a step change occurs to a control value for a numerically controlled oscillator (NCO) providing a mixing signal, mixing the mixing signal with an input radio frequency (RF) signal to obtain an intermediate frequency (IF) signal and demodulating the IF signal into a demodulated signal, generating a correction value based on the step change, and applying the correction value to the demodulated signal. Other embodiments may be used to cancel other undesired signal portions, such as impulse spikes generated from the NCO change.
Performing A Coordinate Rotation Digital Computer (Cordic) Operation For Amplitude Modulation (Am) Demodulation
US Patent:
7436252, Oct 14, 2008
Filed:
Sep 28, 2006
Appl. No.:
11/529076
Inventors:
Dana Taipale - Austin TX, US
Javier Elenes - Austin TX, US
Javier Elenes - Austin TX, US
Assignee:
Silicon Laboratories Inc. - Austin TX
International Classification:
H03D 1/00
US Classification:
329360, 455337
Abstract:
In one aspect, the present invention includes a method for receiving an amplitude modulation (AM) signal in a receiver and performing a coordinate rotation digital computer (CORDIC) operation in obtaining a demodulated AM signal. The demodulated AM signal may be obtained from a magnitude output of the CORDIC operation or as a real output of a multiplication between a complex baseband signal and a demodulating carrier signal generated in a feedback loop.
Methods And Apparatus To Generate Small Frequency Changes
US Patent:
2007000, Jan 4, 2007
Filed:
Oct 27, 2005
Appl. No.:
11/259888
Inventors:
Lawrence Der - Austin TX, US
Dana Taipale - Austin TX, US
Scott Willingham - Austin TX, US
Dana Taipale - Austin TX, US
Scott Willingham - Austin TX, US
International Classification:
H04B 1/06, H04B 7/00
US Classification:
455262000
Abstract:
In one embodiment, the present invention includes an apparatus having a first capacitor coupled between a first node and a second node, a second capacitor coupled between the second node and a reference potential, and a third capacitor coupled between the second node and a switch, where the switch is controllable to couple the third capacitor to the second node. Using such an apparatus small changes in capacitance and correspondingly small changes in frequency may be effected. Other embodiments are directed to calibration of one or more capacitor banks.
Impulse Detection And Reduction In A Frequency Modulation Radio Receiver
US Patent:
7835468, Nov 16, 2010
Filed:
Mar 13, 2006
Appl. No.:
11/374577
Inventors:
Javier Elenes - Austin TX, US
Dana J. Taipale - Austin TX, US
Dana J. Taipale - Austin TX, US
Assignee:
Silicon Laboratories, Inc. - Austin TX
International Classification:
H04L 27/00, H03K 7/06, H03D 3/00
US Classification:
375324, 375271, 375322
Abstract:
A radio receiver includes a processing unit that may generate a respective phase value corresponding to each of a plurality of digital samples of a received complex frequency modulation (FM) signal. The receiver also includes an impulse unit that may detect whether a linear combination of a phase value of a current sample and a phase value of one or more previous samples will produce an impulse at an output of an FM demodulator. If the impulse unit detects that an impulse will be produced at the output, the impulse unit may replace the output of the FM discriminator with a predetermined value.
Low-If Terrestrial Data Receiver And Related Communication Systems And Methods
US Patent:
2010026, Oct 21, 2010
Filed:
Apr 20, 2009
Appl. No.:
12/386537
Inventors:
Lokesh K. Duraiappah - Austin TX, US
Dana J. Taipale - Austin TX, US
Wade R. Gillham - Austin TX, US
George Tyson Tuttle - Austin TX, US
Dana J. Taipale - Austin TX, US
Wade R. Gillham - Austin TX, US
George Tyson Tuttle - Austin TX, US
International Classification:
H04L 27/22
US Classification:
375329
Abstract:
Low-IF terrestrial data receivers and related communication systems and methods are disclosed that provide efficient solutions for reception of data services in FM broadcast channels. In particular, systems and methods are provided for data service information modulated on a 67.65 kHz sub-carrier, for example, using QPSK modulation. Intermediate data service information is output by the data receiver, and this intermediate data service information takes the form of demodulated digital I/Q signals provided through a digital interface of the data receiver. As such, partial digital signal processing is provided by the data receiver and the remaining digital processing is provided by a host processor.