The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 12, 2002
Filed:
May. 12, 2000
John Thomas Solar, Algonquin, IL (US);
Alexander Wayne Hietala, Phoenix, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A dual mode wireless device in which a coefficient generator ( ) generates parameter values for a GSM waveform, based on transmitted sequences of digital data values from a GSM unit ( ), using a multiplierless operation, and a waveform generator generating the GSM waveform using the generated parameter values. The coefficient generator includes adder sections ( ), each having corresponding adders ( ) and multipliers ( ), register sections ( ), each containing parameters corresponding to a modulator ( ), and transmit data registers (TXDATA[ ]-TXDATA[ ]) sequentially receiving the digital data values from the GSM unit. The coefficient generator generates the parameter values for the GSM waveform by multiplying each of the parameters in the register sections by a one or a negative one, responsive to the digital data values in the transmit data registers, and adding the resulting products to form corresponding coefficient generator output values.