초록 ▼

A transmitter (300) comprises summers (301-307, 3178-319), and mixers (309-315, 333). During multi-carrier transmission, multiple I and Q components enter the transmitter. I.sub.1 is summed with I.sub.3, Q.sub.3 is subtracted from Q.sub.1, Q.sub.1 is added to Q.sub.3, and I.sub.3 is subtracted from

A transmitter (300) comprises summers (301-307, 3178-319), and mixers (309-315, 333). During multi-carrier transmission, multiple I and Q components enter the transmitter. I.sub.1 is summed with I.sub.3, Q.sub.3 is subtracted from Q.sub.1, Q.sub.1 is added to Q.sub.3, and I.sub.3 is subtracted from I.sub.1. The outputs of a first and a second summer (301, 305) enters a first and a second mixer (309, 313) where they are mixed by a cosine function. Similarly, the outputs of a third and a fourth summer (303, 307) enter a third and a fourth mixer (311, 315) where they are mixed by a sine function. The output from first and the second mixer (309, 311) enter a first summer (317) where they are summed along with the I.sub.2 component. The output from the third and the fourth mixer (313, 315) enters a second summer (319) where they are summed along with the Q.sub.2 component.

대표청구항 ▼

[ What is claimed is:] [1.] A method for operating a multi-mode transmitter, the method comprising the steps of:receiving a first, a second, and a third in phase component, and a first, a second, and a third quadrature component;determining a mode of operation; andbased on the mode of operation, sum

[ What is claimed is:] [1.] A method for operating a multi-mode transmitter, the method comprising the steps of:receiving a first, a second, and a third in phase component, and a first, a second, and a third quadrature component;determining a mode of operation; andbased on the mode of operation, summing the first and the third in phase components to produce a first summed component, and subtracting the third quadrature component from the first quadrature component to produce a second summed component;based on the mode of operation, mixing the first summed component with a cosine function to produce a first mixed component and mixing the second summed component with a sine function to produce a second mixed component;based on the mode of operation, summing the first and the second mixed components with the third in phase component.