Universal tuner for mobile TV
First Claim
1. A tuner for use in mobile television communication devices, said tuner comprising:
- at least one radio frequency (RF) front end component comprising;
a low noise amplifier (LNA) adapted to amplify mobile television communication signals;
a phase-locked loop (PLL) circuit adapted to generate signals; and
a pair of mixers adapted to receive the signals from said LNA and said PLL circuit and downconvert the received signals;
an analog baseband component operatively connected to said RF front end component, wherein said analog baseband component comprises an I channel signal path and a Q channel signal path, and wherein each of the I and Q channel signal paths comprise;
a tunable high order impedance filter;
at least one signal amplification stage; and
a signal filter stage operatively connected to said at least one signal amplification stage,wherein said analog baseband component further comprises a plurality of switches operatively connected to said I and Q channel signal paths, andwherein said plurality of switches are selectively opened and closed in multiple configurations in order to allow said tuner to receive mobile TV communication signals for all mobile TV standards.
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Accused Products
Abstract
A tuner for use in mobile television devices comprises at least one RF front end component comprising a LNA adapted to amplify mobile television signals; a PLL circuit to generate signals; and a pair of mixers to receive the signals from the LNA and the PLL circuit and downconvert the signals; an analog baseband component connected to the RF front end component, wherein the analog baseband component comprises I and Q channel signal paths each comprising a tunable high order impedance filter; at least one signal amplification stage; and a signal filter stage connected to the signal amplification stage, wherein the analog baseband component further comprises a plurality of switches operatively connected to the I and Q channel signal paths, and wherein the plurality of switches are selectively opened and closed in multiple configurations in order to allow the tuner to receive mobile TV signals for all mobile TV standards.
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Citations
23 Claims
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1. A tuner for use in mobile television communication devices, said tuner comprising:
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at least one radio frequency (RF) front end component comprising; a low noise amplifier (LNA) adapted to amplify mobile television communication signals; a phase-locked loop (PLL) circuit adapted to generate signals; and a pair of mixers adapted to receive the signals from said LNA and said PLL circuit and downconvert the received signals; an analog baseband component operatively connected to said RF front end component, wherein said analog baseband component comprises an I channel signal path and a Q channel signal path, and wherein each of the I and Q channel signal paths comprise; a tunable high order impedance filter; at least one signal amplification stage; and a signal filter stage operatively connected to said at least one signal amplification stage, wherein said analog baseband component further comprises a plurality of switches operatively connected to said I and Q channel signal paths, and wherein said plurality of switches are selectively opened and closed in multiple configurations in order to allow said tuner to receive mobile TV communication signals for all mobile TV standards. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 21)
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19. A wireless receiver for use in mobile television communication devices, said wireless receiver comprising:
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at least one radio frequency (RF) front end component comprising; a low noise amplifier (LNA) adapted to amplify mobile television communication signals; a phase-locked loop (PLL) circuit adapted to generate signals; and a pair of mixers adapted to receive the signals from said LNA and said PLL circuit and downconvert the received signals; an analog baseband component operatively connected to said RF front end component, wherein said analog baseband component comprises; an I channel signal path; a Q channel signal path; a polyphase filter operatively connected to the I and Q channel signal paths; and at least five switches operatively connected to said I and Q channel signal paths, wherein said at least five switches are selectively opened and closed in multiple configurations in order to allow said wireless receiver to receive mobile TV communication signals for all mobile TV standards, and wherein said at least five switches that are selectively opened cause circuit elements operatively connected to said opened switches and after the opened switches along said I and Q channel signal paths to refrain from consuming power. - View Dependent Claims (22)
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20. A method of receiving a television signal in a mobile television communication device, said method comprising:
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amplifying a mobile television communication signal using a low noise amplifier (LNA) in at least one radio frequency (RF) front end component of said device; generating signals using a phase-locked loop (PLL) circuit in said at least one RF front end component of said device; downconverting the amplified mobile television communication signal from said LNA and said signals from said PLL in a pair of mixers in said at least one RF front end component of said device; transmitting the converted signal along at least one of an I and Q channel signal path in an analog baseband component of said device, wherein each of the I and Q channel signal paths comprise; a tunable high order impedance filter; at least one signal amplification stage; and a signal filter stage operatively connected to said at least one signal amplification stage, filtering said converted signal along the I and Q channel signal paths; amplifying said converted signal along said I and Q channel signal path; and selectively diverting said converted signal along said I and Q channel signal path by selectively opening and closing a plurality of switches in said analog baseband component to selectively allow said device to receive radio signals and mobile television signals for all mobile television standards. - View Dependent Claims (23)
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Specification