DSPGURU wrote: > On Feb 22, 1:04 am, "bharat pathak" <bha...@arithos.com> wrote: ... > Kamar Ruptan > DSP Guru Hi Kamar, With all due respect, may I ask that you not use the term "DSPGURU" as a handle in this group? You see, I created the dspGuru website, at http:\\www.dspguru.com, several years ago with the help of some of the regular posters to this newsgroup, many of which are still regular contributors. Although I'm sure this isn't your intention, I'm concerned that your use of that name might suggest to others in this group that you are somehow associated with the site, even though you are not. Not only is "dspguru" the central part of the domain name, it is a trademark owned by my little company, Iowegian International Corporation. (See http:\\www.iowegian.com.) Please understand that I do not doubt your DSP knowledge or your good intentions. However, trademark law requires that a trademark be defended from confusing uses in order for the trademark owner to retain the mark. In that vein, please consider this a friendly request for a favor from someone who you may never have heard of before, but who has contributed to this newsgroup in the past. In fact, I once even shared a certain blacklist with such comp.dsp luminaries as Rick Lyons, Robert Bristow-Johnson, Jerry Avins, and Peter K. -- not to brag. ;-) :-) =g2 _____________________________________________________________________ Grant R. Griffin Publisher of dspGuru http://www.dspguru.com Iowegian International Corporation http://www.iowegian.com See http://www.iowegian.com/img/contact.gif for e-mail address
how to derive IFFT of boxcar filter
Started by ●February 22, 2008
Reply by ●February 29, 20082008-02-29
Reply by ●February 29, 20082008-02-29
DSPGURU wrote: > On Feb 22, 1:04 am, "bharat pathak" <bha...@arithos.com> wrote: ... > Kamar Ruptan > DSP Guru Hi Kamar, With all due respect, may I ask that you not use the term "DSPGURU" as a handle in this group? You see, I created the dspGuru website, at http:\\www.dspguru.com, several years ago with the help of some of the regular posters to this newsgroup, many of which are still regular contributors. Although I'm sure this isn't your intention, I'm concerned that your use of that name might suggest to others in this group that you are somehow associated with the site, even though you are not. Not only is "dspguru" the central part of the domain name, it is a trademark owned by my little company, Iowegian International Corporation. (See http:\\www.iowegian.com.) Please understand that I do not doubt your DSP knowledge or your good intentions. However, trademark law requires that a trademark be defended from confusing uses in order for the trademark owner to retain the mark. In that vein, please consider this a friendly request for a favor from someone who you may never have heard of before, but who has contributed to this newsgroup in the past. In fact, I once even shared a certain blacklist with such comp.dsp luminaries as Rick Lyons, Robert Bristow-Johnson, Jerry Avins, and Peter K. -- not to brag. ;-) :-) =g2 _____________________________________________________________________ Grant R. Griffin Publisher of dspGuru http://www.dspguru.com Iowegian International Corporation http://www.iowegian.com See http://www.iowegian.com/img/contact.gif for e-mail address
Reply by ●February 29, 20082008-02-29
DSPGURU wrote: > On Feb 22, 1:04 am, "bharat pathak" <bha...@arithos.com> wrote: ... > Kamar Ruptan > DSP Guru Hi Kamar, With all due respect, may I ask that you not use the term "DSPGURU" as a handle in this group? You see, I created the dspGuru website, at http:\\www.dspguru.com, several years ago with the help of some of the regular posters to this newsgroup, many of which are still regular contributors. Although I'm sure this isn't your intention, I'm concerned that your use of that name might suggest to others in this group that you are somehow associated with the site, even though you are not. Not only is "dspguru" the central part of the domain name, it is a trademark owned by my little company, Iowegian International Corporation. (See http:\\www.iowegian.com.) Please understand that I do not doubt your DSP knowledge or your good intentions. However, trademark law requires that a trademark be defended from confusing uses in order for the trademark owner to retain the mark. In that vein, please consider this a friendly request for a favor from someone who you may never have heard of before, but who has contributed to this newsgroup in the past. In fact, I once even shared a certain blacklist with such comp.dsp luminaries as Rick Lyons, Robert Bristow-Johnson, Jerry Avins, and Peter K. -- not to brag. ;-) :-) =g2 _____________________________________________________________________ Grant R. Griffin Publisher of dspGuru http://www.dspguru.com Iowegian International Corporation http://www.iowegian.com See http://www.iowegian.com/img/contact.gif for e-mail address
Reply by ●February 29, 20082008-02-29
DSPGURU wrote: > On Feb 22, 1:04 am, "bharat pathak" <bha...@arithos.com> wrote: ... > Kamar Ruptan > DSP Guru Hi Kamar, With all due respect, may I ask that you not use the term "DSPGURU" as a handle in this group? You see, I created the dspGuru website, at http:\\www.dspguru.com, several years ago with the help of some of the regular posters to this newsgroup, many of which are still regular contributors. Although I'm sure this isn't your intention, I'm concerned that your use of that name might suggest to others in this group that you are somehow associated with the site, even though you are not. Not only is "dspguru" the central part of the domain name, it is a trademark owned by my little company, Iowegian International Corporation. (See http:\\www.iowegian.com.) Please understand that I do not doubt your DSP knowledge or your good intentions. However, trademark law requires that a trademark be defended from confusing uses in order for the trademark owner to retain the mark. In that vein, please consider this a friendly request for a favor from someone who you may never have heard of before, but who has contributed to this newsgroup in the past. In fact, I once even shared a certain blacklist with such comp.dsp luminaries as Rick Lyons, Robert Bristow-Johnson, Jerry Avins, and Peter K. -- not to brag. ;-) :-) =g2 _____________________________________________________________________ Grant R. Griffin Publisher of dspGuru http://www.dspguru.com Iowegian International Corporation http://www.iowegian.com See http://www.iowegian.com/img/contact.gif for e-mail address
Reply by ●February 29, 20082008-02-29
DSPGURU wrote: > On Feb 22, 1:04 am, "bharat pathak" <bha...@arithos.com> wrote: ... > Kamar Ruptan > DSP Guru Hi Kamar, With all due respect, may I ask that you not use the term "DSPGURU" as a handle in this group? You see, I created the dspGuru website, at http:\\www.dspguru.com, several years ago with the help of some of the regular posters to this newsgroup, many of which are still regular contributors. Although I'm sure this isn't your intention, I'm concerned that your use of that name might suggest to others in this group that you are somehow associated with the site, even though you are not. Not only is "dspguru" the central part of the domain name, it is a trademark owned by my little company, Iowegian International Corporation. (See http:\\www.iowegian.com.) Please understand that I do not doubt your DSP knowledge or your good intentions. However, trademark law requires that a trademark be defended from confusing uses in order for the trademark owner to retain the mark. In that vein, please consider this a friendly request for a favor from someone who you may never have heard of before, but who has contributed to this newsgroup in the past. In fact, I once even shared a certain blacklist with such comp.dsp luminaries as Rick Lyons, Robert Bristow-Johnson, Jerry Avins, and Peter K. -- not to brag. ;-) :-) =g2 _____________________________________________________________________ Grant R. Griffin Publisher of dspGuru http://www.dspguru.com Iowegian International Corporation http://www.iowegian.com See http://www.iowegian.com/img/contact.gif for e-mail address
Reply by ●February 29, 20082008-02-29
DSPGURU wrote: > On Feb 22, 1:04 am, "bharat pathak" <bha...@arithos.com> wrote: ... > Kamar Ruptan > DSP Guru Hi Kamar, With all due respect, may I ask that you not use the term "DSPGURU" as a handle in this group? You see, I created the dspGuru website, at http:\\www.dspguru.com, several years ago with the help of some of the regular posters to this newsgroup, many of which are still regular contributors. Although I'm sure this isn't your intention, I'm concerned that your use of that name might suggest to others in this group that you are somehow associated with the site, even though you are not. Not only is "dspguru" the central part of the domain name, it is a trademark owned by my little company, Iowegian International Corporation. (See http:\\www.iowegian.com.) Please understand that I do not doubt your DSP knowledge or your good intentions. However, trademark law requires that a trademark be defended from confusing uses in order for the trademark owner to retain the mark. In that vein, please consider this a friendly request for a favor from someone who you may never have heard of before, but who has contributed to this newsgroup in the past. In fact, I once even shared a certain blacklist with such comp.dsp luminaries as Rick Lyons, Robert Bristow-Johnson, Jerry Avins, and Peter K. -- not to brag. ;-) :-) =g2 _____________________________________________________________________ Grant R. Griffin Publisher of dspGuru http://www.dspguru.com Iowegian International Corporation http://www.iowegian.com See http://www.iowegian.com/img/contact.gif for e-mail address
Reply by ●February 29, 20082008-02-29
DSPGURU wrote: > On Feb 22, 1:04 am, "bharat pathak" <bha...@arithos.com> wrote: ... > Kamar Ruptan > DSP Guru Hi Kamar, With all due respect, may I ask that you not use the term "DSPGURU" as a handle in this group? You see, I created the dspGuru website, at http:\\www.dspguru.com, several years ago with the help of some of the regular posters to this newsgroup, many of which are still regular contributors. Although I'm sure this isn't your intention, I'm concerned that your use of that name might suggest to others in this group that you are somehow associated with the site, even though you are not. Not only is "dspguru" the central part of the domain name, it is a trademark owned by my little company, Iowegian International Corporation. (See http:\\www.iowegian.com.) Please understand that I do not doubt your DSP knowledge or your good intentions. However, trademark law requires that a trademark be defended from confusing uses in order for the trademark owner to retain the mark. In that vein, please consider this a friendly request for a favor from someone who you may never have heard of before, but who has contributed to this newsgroup in the past. In fact, I once even shared a certain blacklist with such comp.dsp luminaries as Rick Lyons, Robert Bristow-Johnson, Jerry Avins, and Peter K. -- not to brag. ;-) :-) =g2 _____________________________________________________________________ Grant R. Griffin Publisher of dspGuru http://www.dspguru.com Iowegian International Corporation http://www.iowegian.com See http://www.iowegian.com/img/contact.gif for e-mail address
Reply by ●February 29, 20082008-02-29
On Feb 22, 11:04 am, "bharat pathak" <bha...@arithos.com> wrote:> Hi, > > We can very well represent brickwall filter in FFT domain. > > Also we know that IFFT of brickwall will look like > sin(x)/x function extending towards +/- infinity. > > How to derive this using IFFT equation?? > > Regards > Bharat Pathak > > Arithos Designswww.Arithos.comHey, how about using the Duality theorem of Fourier Transform ? If x(t) <----> X(f) then X(t) <---> x(-f) Hence if x(t) is the sinc function ( sin(pi*x)/(pi*x) ) it's FT is rect(t) { boxcar function } The reason you cannot use IFFT equation is that the boxcar is a discontinuous function. In traditional integral calculus, only continuous functions can be integrated.
Reply by ●February 29, 20082008-02-29
Grant wrote:> DSPGURU wrote: > > On Feb 22, 1:04 am, "bharat pathak" <bha...@arithos.com> wrote: > ... > > Kamar Ruptan > > DSP Guru > > Hi Kamar, > > With all due respect, may I ask that you not use the term "DSPGURU" as a > handle in this group?... Grant, Kamar thinks he deserves the title "Guru" because he *almost* has a *degree*. Apropos nothing, but I thought you'd like to know. Jerry -- No nation is permitted to live in ignorance with impunity. -- Jefferson �����������������������������������������������������������������������
Reply by ●March 2, 20082008-03-02
On Feb 28, 11:10�pm, Grant <nob...@example.com> wrote:> DSPGURU wrote: > > �> On Feb 22, 1:04 am, "bharat pathak" <bha...@arithos.com> wrote: > ... > �> Kamar Ruptan > �> DSP Guru > > Hi Kamar, > > With all due respect, may I ask that you not use the term "DSPGURU" as a > handle in this group? You see, I created the dspGuru website, at > http:\\www.dspguru.com, several years ago with the help of some of the > regular posters to this newsgroup, many of which are still regular > contributors. �Although I'm sure this isn't your intention, I'm > concerned that your use of that name might suggest to others in this > group that you are somehow associated with the site, even though you are > not. > > Not only is "dspguru" the central part of the domain name, it is a > trademark owned by my little company, Iowegian International > Corporation. �(See http:\\www.iowegian.com.) �Please understand that I > do not doubt your DSP knowledge or your good intentions. �However, > trademark law requires that a trademark be defended from confusing uses > in order for the trademark owner to retain the mark. > > In that vein, please consider this a friendly request for a favor from > someone who you may never have heard of before, but who has contributed > to this newsgroup in the past. �In fact, I once even shared a certain > blacklist with such comp.dsp luminaries as Rick Lyons, Robert > Bristow-Johnson, Jerry Avins, and Peter K. -- not to brag. ;-) > > :-) > > =g2 > _____________________________________________________________________ > > Grant R. Griffin > Publisher of dspGuru � � � � � � � � � � � � �http://www.dspguru.com > Iowegian International Corporation � � � � � �http://www.iowegian.com > Seehttp://www.iowegian.com/img/contact.giffor e-mail addressHello Grant, I have read and understant you letter. I believe that trademark protects confusing use for trade, which is not so here since I do not use in trade. How ever, since you have ask as such a gentleman, ask with respectfully, I will give honor to your desire. After this letter I will change name for you. Maybe you teach a little manner to Jerry? Maybe old dog too old to teach. :-) Sincerely Kamar Ruptan DSP Guru (not related with DSPGURU)
