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US 6,724,335 B1Granted
Systems and methods for digital upconversion for television signals
AssigneeBroadcom Corporation
InventorsRamon A. Gomez, Donald McMullin
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AssigneeBroadcom Corporation
InventorsRamon A. Gomez, Donald McMullin
Estimating the term…
Systems and methods for digital upconversion of baseband television signals that can be used in cable television headend systems are provided. In one embodiment, the system includes a digital frequency adjustment system and a digital to analog conversion system. In a feature of the embodiment, the digital frequency adjustment system consists of set of digital upconversion and upsample elements that shift upwards the frequency of baseband signals. In a further feature of the embodiment, a tree structure of sets of upsample and upconversion elements is used. In another embodiment, the system includes digital and analog frequency adjustment systems in which the frequencies of the input signals are partially upshifted within both the digital and analog domains. Methods for digital upconversion of television signals are also provided.
A digital headend upconversion system, comprising:
A digital hybrid headend upconversion system, comprising:
A method for digital upconversion of baseband television signals, comprising:
A method for digital upconversion of baseband television signals, comprising:
Dependencies are inferred from the claim text.