Positioning control method and positioning device
US-2017299726-A1 · Oct 19, 2017 · US
Single local oscillator frequency band to receive dual-band signals
US8933839B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8933839-B2 |
| Application number | US-14011308-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 16, 2008 |
| Priority date | Jun 16, 2008 |
| Publication date | Jan 13, 2015 |
| Grant date | Jan 13, 2015 |
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Abstract
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A dual-band GPS receiver and method and apparatus for downconversion of dual-band GPS signals. A dual-band GPS receiver in accordance with the present invention comprises an antenna, a Radio Frequency (RF) section, coupled to the antenna, and a baseband section, coupled to the RF section, wherein the RF section comprises a receiver, the receiver receiving signals from a first GPS frequency band and a second GPS frequency band, a local oscillator having a local oscillator frequency, and a mixer, coupled to the receiver and the local oscillator, for selectively mixing the local oscillator frequency with the first GPS frequency band and a second GPS frequency band, wherein the local oscillator frequency downconverts the first GPS frequency band and the second GPS frequency band into a common downconversion frequency band.
First claim
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What is claimed is: 1. A frequency source for use in a dual-band Global Positioning System (GPS) receiver having baseband circuitry configured to provide position information based upon transmissions from GPS satellites, comprising: a reference frequency source; a mixer, coupled to the reference frequency source and to the baseband circuitry; and a receiver, coupled to the mixer, wherein the receiver receives multiple frequency bands within the GPS system, the reference frequency s…
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- G01S19/32Primary
Physics · mapped topic
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- What does patent US8933839B2 cover?
- A dual-band GPS receiver and method and apparatus for downconversion of dual-band GPS signals. A dual-band GPS receiver in accordance with the present invention comprises an antenna, a Radio Frequency (RF) section, coupled to the antenna, and a baseband section, coupled to the RF section, wherein the RF section comprises a receiver, the receiver receiving signals from a first GPS frequency band…
- Who is the assignee on this patent?
- Lin Qiang, Qualcomm Inc
- What technology area does this patent fall under?
- Primary CPC classification G01S19/32. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 13 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).