USPatentGranted
B2Dynamically varying linearity system for an RF front-end of a communication device
Granted 6 May 2003 · 2 office actions
Current assignee: Intel Corporation · originally Skyworks Solutions
Law firm: Law firm · Log in to unlock
Attorney: Attorney · Log in to unlock
Inventors: Balasubramanian Ramachandran · Examiner: Nay Maung
Application
9811082
filed 16 Mar 2001
Publication
US 20020159503
published 31 Oct 2002
Patent· this page
US 6,560,446
granted 6 May 2003
58
Claims
9 independent
58
File wrapper
transactions
2021
20-year term
term adjustment not held
none
Litigation
checked
4
Classifications
H04Q7/20
16
Citations
16 cites · 0 cited by
Life of the patent
3 dated events⤢ drag to zoom
Prosecutionhover for detail · click to open
Abstract
A dynamically varying linearity system DVLS capable of varying the linearity of a radio frequency (RF) front-end of a communication device responsive to receiving a condition signal indicating a desired mode of operation of a transmitter. The DVLS may include a condition signal indicative of the desired mode of operation and a controller that adjusts the linearity of the transmitter responsive to the condition signal. The condition signal may be responsive to a user interface. The controller, responsive to the condition signal, may dynamically adjust the operating current of the transmitter.
Claims
58 · 9 independent · depth 458 granted claims
›1.independentA communication device having a system for dynamically varying the operating current of at least part of a multi-mode transmitter comprising: a mode s…+9
›2.↳ 1The communication device of claim 1 wherein the mode selector is configured to select a mode from the following group: voice transmission, low data ra…d2
›3.↳ 1The communication device of claim 1 wherein the first sub-module is configured to determine the base linearity responsive to accesses to first and sec…d2
›4.↳ 1The communication device of claim 1 wherein the multi-mode transmitter is a spread spectrum transmitter.d2+3
›5.↳ 4The communication device of claim 4 wherein the spread spectrum transmitter is a code division multiple access transmitter.d3
›6.↳ 4The communication device of claim 4 wherein the spread spectrum transmitter has a radio frequency front end and the controller is configured to dynami…d3+1
›7.↳ 6The communication device of claim 6 wherein the radio frequency front end of the spread spectrum transmitter includes an ultra high frequency mixer an…d4
›8.↳ 1The communication device of claim 1 wherein the communication device is a mobile unit.d2+2
›9.↳ 8The communication device of claim 8 wherein the desired transmit power of the multi-mode transmitter is determined by a base station in communication …d3
›10.↳ 8The communication device of claim 8 wherein the mobile unit is a cellular telephone.d3
›11.independentA system comprising: a mode selector for selecting a mode of operation of a transmitter; and a controller that adjusts the operating current of at lea…+12
›12.↳ 11The system of claim 11 wherein the mode selector is configured to select a mode responsive to a command received over a user interface.d2+1
›13.↳ 12The system of claim 12 wherein the mode selector is configured to select a mode from the following group: voice transmission, low data rate transmissi…d3
›14.↳ 11The system of claim 11 wherein the first sub-module is configured to determine the base linearity responsive to a crest factor associated with the sel…d2+1
›15.↳ 14The system of claim 14 wherein the first sub-module is configured to determine the base linearity responsive to accesses to first and second lookup ta…d3
›16.↳ 11The system of claim 11 wherein the transmitter is a spread spectrum transmitter.d2+3
›17.↳ 16The system of claim 16 wherein the spread spectrum transmitter is a code division multiple access transmitter.d3
›18.↳ 16The system of claim 16 wherein the spread spectrum transmitter has a radio frequency front-end and the controller is configured to dynamically determi…d3+1
›19.↳ 18The system of claim 18 wherein the radio frequency front-end of the spread spectrum transmitter includes an ultra high frequency mixer and a pre-drive…d4
›20.↳ 11The system of claim 11 wherein the system is a communication device.d2+3
›21.↳ 20The system of claim 20 wherein the communication device is a mobile unit.d3+2
›22.↳ 21The system of claim 21 wherein the desired transmit power of the multi-mode transmitter is determined by a base station in communication with the mobi…d4
›23.↳ 21The system of claim 21 wherein the mobile unit is a cellular telephone.d4
›24.independentA communication device having a system for dynamically varying the operating current of at least part of a multi-mode transmitter comprising: means fo…+2
›25.↳ 24The communication device of claim 24 wherein the selector means selects a mode from the following group: voice transmission, low data rate transmissio…d2
›26.↳ 24The communication device of claim 24 wherein the determining the base linearity means is responsive to accesses to first and second lookup tables, whe…d2
›27.independentA system comprising: means for selecting a mode of operation of a transmitter; and means for adjusting the operating current of at least part of the t…+12
›28.↳ 27The system of claim 27 wherein the selector means is configured to select a mode responsive to a command received over a user interface.d2+1
›29.↳ 28The system of claim 28 wherein the selector means selects a mode from the following group: voice transmission, low data rate transmission, medium data…d3
›30.↳ 27The system of claim 27 wherein the determining means determines the base linearity responsive to a crest factor associated with the selected mode.d2+1
›31.↳ 30The system of claim 30 wherein the determining a base linearity means determines the base linearity responsive to accesses to first and second lookup …d3
›32.↳ 27The system of claim 27 wherein the transmitter is a spread spectrum transmitter.d2+3
›33.↳ 32The system of claim 32 wherein the spread spectrum transmitter is a code division multiple access transmitter.d3
›34.↳ 32The system of claim 32 wherein the spread spectrum transmitter has a radio frequency front-end and the adjusting means further includes means for dyna…d3+1
›35.↳ 34The system of claim 34 wherein the radio frequency front-end of the spread spectrum transmitter includes an ultra high frequency mixer and a pre-drive…d4
›36.↳ 27The system of claim 27 wherein the system is a communication device.d2+3
›37.↳ 36The system of claim 36 wherein the communication device is a mobile unit.d3+2
›38.↳ 37The system of claim 37 wherein the desired transmit power of the transmitter is determined by a base station in communication with the mobile unit and…d4
›39.↳ 37The system of claim 37 wherein the mobile unit is a cellular telephone.d4
›40.independentA method for dynamically varying the operating current of at least part of a transmitter, the method comprising: selecting a mode of operation for the…+4
›41.↳ 40The method of claim 40 wherein the selecting step further includes selecting the mode from the following group: voice transmission; low data rate tran…d2
›42.↳ 40The method of claim 40 wherein the determining step further includes: determining a crest factor for the selected mode; and determining the base linea…d2
›43.↳ 40The method of claim 40 further comprising applying the operating current to at least part of the transmitter.d2+1
›44.↳ 43The method of claim 43 further including applying the operating current to at least part of a radio frequency front-end of the transmitter.d3
›45.independentA signal-bearing medium having software for dynamically varying the operating current of at least part of a transmitter, the signal-bearing medium com…+4
›46.↳ 45The signal bearing medium of claim 45 wherein the selecting logic further includes logic configured to select the mode from the following group: voice…d2
›47.↳ 45The signal-bearing medium of claim 45 wherein the determining logic further includes: logic configured to determine a crest factor for the selected mo…d2
›48.↳ 45The signal-bearing medium of claim 45 further comprising logic configured to apply the operating current to at least part of the transmitter.d2+1
›49.↳ 48The signal-bearing medium of claim 48 further including logic configured to apply the operating current to at least part of a radio frequency front-en…d3
›50.independentA computer data signal embodied in a carrier wave comprising: a mode selection source code segment comprising means for selecting a mode of operation …+3
›51.↳ 50The computer data signal of claim 50 wherein the selecting source code segment further includes a selecting source code segment for selecting the mode…d2
›52.↳ 50The computer data signal of claim 50 wherein the determining source code segment further includes: determining source code segment for determining a c…d2+1
›53.↳ 52The computer data signal of claim 52 further including logic configured to apply the operating current to at least part of a radio frequency front-end…d3
›54.independentA computer-readable medium having software for dynamically varying the operating current of at least part of a transmitter, the computer-readable medi…+3
›55.↳ 54The computer-readable medium of claim 54 wherein the selecting logic further includes logic configured to select the mode from the following group: vo…d2
›56.↳ 54The computer-readable medium of claim 54 wherein the determining logic further includes: logic configured to determine a crest factor for the selected…d2+1
›57.↳ 56The computer-readable medium of claim 56 further including logic configured to apply the operating current to at least part of a radio frequency front…d3
›58.independentA signal-bearing medium having software for dynamically varying the operating current of at least part of a multi-mode transmitter, the signal bearing…
Classifications
4 codesIPC · International Patent Classification
Section H — Electricity
- H04Q7/20
USPC · US Patent Classification
455/115455/127455/522
Claim changes
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File wrapper
Pendency
2.1 y
781 days filing → grant
Office actions
1
non-final + final
Responses
1
1 RCE
Examiner
Nay Maung
art unit —
Law firm
Citations: 16 back · 0 forward
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1 priority documents›Priority documents — 1
| Type | Document | Date |
|---|---|---|
| related publication | US 20020159503 A1 | 31 Oct 2002 |
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