US 9,960,939 B1Granted

Transmitter and method for transmitting a bluetooth packet

AssigneeBeken Corporation

InventorsYiming Huang, Weifeng Wang

Life of this patent

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Abstract

Embodiments discloses a transmitter for transmitting a Bluetooth packet in an enhanced data rate format. The Bluetooth packet includes a GFSK modulated segment, a Guard segment and a DPSK modulated segment. The transmitter comprises a first multiplexer configured to select a phase signal from a Guard phase signal, a received GFSK phase signal and a received DPSK phase signal based on time; a second multiplexer configured to select a amplitude signal from a Guard amplitude signal, a received GFSK amplitude signal and a received DPSK amplitude signal based on time, a phase to frequency converter communicatively coupled to the first multiplexer and configured to convert the selected phase signal into converted frequency signal. The transmitter further comprises a phase lock loop, a digital to analog converter and a power amplifier.

Claims14

Dependent claims

A transmitter for transmitting a Bluetooth packet in an enhanced data rate format, the Bluetooth packet includes a Gaussian frequency-shift keying (GFSK) modulated segment, a Guard segment and a Differential Phase-Shift Keying (DPSK) modulated segment, the transmitter comprising:

a first multiplexer configured to select a phase signal from a Guard phase signal, a received GFSK phase signal and a received DPSK phase signal based on time;
a second multiplexer configured to select a amplitude signal from a Guard amplitude signal, a received GFSK amplitude signal and a received DPSK amplitude signal based on time,
a phase to frequency converter communicatively coupled to the first multiplexer and configured to convert the selected phase signal into converted frequency signal;
a phase lock loop communicatively coupled to the phase to frequency converter and configured to generate a local oscillation signal based the converted frequency signal;
a digital to analog converter communicatively coupled to the second multiplexer and configured to convert the selected amplitude into an analog selected amplitude;
and
a power amplifier communicatively coupled to both the phase lock loop and the digital to analog converter and configured to generate and output a radio frequency signal based on the local oscillation signal and the analog selected amplitude.

4 more elements

A method of transmitting a Bluetooth packet in an enhanced data rate format, the Bluetooth packet includes a Gaussian frequency-shift keying (GFSK) modulated segment, a Guard segment and a Differential Phase-Shift Keying (DPSK) modulated segment, the method comprising:

selecting, by a first multiplexer, a phase signal from a Guard phase signal, a received GFSK phase signal and a received DPSK phase signal based on time;
selecting, by a second multiplexer, a amplitude signal from a Guard amplitude signal, a received GFSK amplitude signal and a received DPSK amplitude signal based on time,
converting, by a phase to frequency converter communicatively coupled to the first multiplexer, the selected phase signal into converted frequency signal;
generating, by a phase lock loop communicatively coupled to the phase to frequency converter, a local oscillation signal based the converted frequency signal;
converting, by a digital to analog converter communicatively coupled to the second multiplexer, the selected amplitude into an analog selected amplitude;
and
generating and outputting, by a power amplifier communicatively coupled to both the phase lock loop and the digital to analog converter, a radio frequency signal based on the local oscillation signal and the analog selected amplitude.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/590,833Filed 9 May 2017
Priority: CN 2017 1 025756019 Apr 2017
Granted: 1 May 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H04L 27/12
Frequency-modulated carrier systems, i.e. using frequency-shift keying: modulator circuits; Transmitter circuits
H03C 5/00
Amplitude modulation and angle modulation produced simultaneously or at will by the
H04L 27/0008
Modulated-carrier systems: arrangements for allowing a transmitter or receiver to use more than one type of modulation
H04L 27/2017
In which the phase change within each symbol period is constrained: in which the phase changes are non-linear, e.g. generalized and Gaussian…