Patents

Redpine has focused on innovation through research in areas that include OFDM/OFDMA, MIMO, energy efficient wireless, wireless operation in dense environments, low power CMOS RF and high efficiency CMOS PAs.

Redpine has 68 awarded patents and over 100 are in the pipeline.


All Patents

# Patent Number Patent Name
1 72,98,799 All-tap fractionally spaced, serial rake combiner apparatus and method
2 73,86,074 Digital automatic gain control method and apparatus
3 74,12,000 Maximum likelihood block decision feedback estimation for CCK demodulation apparatus and method
4 73,27,700 Flexible multi-channel multi-thread media access controller and physical layer interface for wireless networks
5 72,96,100 Packet Buffer Management Apparatus and Method
6 77,61,688 Multiple thread in-order issue in-order completion DSP and micro-controller
7 72,18,896 Multiplexed Wireless Receiver and Transmitter
8 72,98,772 Packet detection, symbol timing, and coarse frequency estimation in an OFDM communications system
9 75,93,459 Wireless Link Simulator
10 78,70,468 Reed-Solomon Decoder using a Configurable Arithmetic Processor
11 72,95,144 Quantizer Responsive to Noise Level for a Wireless Communication System
12 76,34,000 Noise estimator for a communications system
13 75,93,378 SINR-based power down apparatus and method for a wireless communications systems
14 79,07,555 RSSI-based powerdown apparatus and method for a wireless communications system
15 79,86,738 Peak to average power ratio reduction apparatus and method for a wireless OFDM transmitter
16 76,56,970 Apparatus for a wireless communications system using signal energy to control sample resolution and rate
17 80,73,085 Analog to digital converter bit width and gain controller for a wireless receiver
18 82,59,786 Channel estimation filter for OFDM receiver
19 81,49,965 Level Sensitive Packet Detector
20 79,65,782 Reduced complexity maximum likelihood decoder for MIMO communications
21 80,81,700 Power Allocation Method for MIMO Transmit Beamforming
22 80,51,222 Concatenating secure digital input output (SDIO) interface
23 80,05,179 Preamble Detection in a Multi-Antenna MIMO 802.16e Receiver
24 78,44,007 Combined OFDMA preamble index identification, integer frequency offset estimation, and preamble CINR measurement
25 76,57,683 Cross-thread interrupt controller for a multi-thread processor
26 79,57,273 Packet re-transmission controller for block acknowledgement in a communications system
27 81,07,518 Stream Weight Estimation and Compensation in SIMO/MIMO OFDM Receivers
28 80,08,949 Clock Selection for a Communications Processor having a Sleep Mode
29 74,50,911 Multiplexed Wireless Receiver and Transmitter
30 81,61,205 Packet Buffer Management Apparatus and Method
31 74,64,201 Packet Buffer Management Apparatus and Method
32 75,29,865 Packet Buffer Management Apparatus and Method
33 81,60,190 IIR receive filter for OFDM baseband processor
34 83,32,451 Programmable CORDIC Processor
35 83,96,063 Multi-thread media access controller with per-thread MAC address
36 75,93,456 Maximum Likelihood Block Decision Feedback Estimation for CCK Demodulation Apparatus and Method
37 82,45,063 Clock Selection for a Communications Processor having a Sleep Mode
38 80,77,591 Combined OFDMA preamble index identification, integer frequency offset estimation, and preamble CINR measurement
39 81,49,966 Packet acquisition controller with signal strength threshold control for wireless MIMO receiver
40 80,90,062 Process for packet detection
41 80,90,035 Method for setting inter-packet gain
42 81,65,251 Interpolation IIR filter for OFDM baseband processing
43 81,51,155 Packet Re-transmission controller for block acknowledgement in a communications system
44 82,23,906 Interpolation IIR filter for OFDM baseband processing
45 81,55,220 Interpolation IIR filter for OFDM baseband processing
46 84,47,799 Process for QR transformation using a CORDIC processor
47 84,52,830 Programmable CORDIC processor with stage re-use
48 81,39,699 Process for preamble detection in a multi-stream 802.16E receiver
49 80,31,762 Stream Weight Estimation and Compensation in SIMO/MIMO OFDM Receivers
50 79,36,237 Multi-band transmit-receive switch for wireless transceiver
51 89,71,210 Reconfigurable Multi-Stream Processor for Multiple-Input Multiple-Output (MIMO) Wireless Networks
52 89,37,971 Dual mode WLAN device for dense user environments
53 89,37,968 Received signal strength indication for use as a baseband processor qualifier in high density WLAN environments
54 90,07,969 Automatic time slicing of beacon intervals in high density wireless LAN
55 90,01,753 Assignment and use of wireless LAN channels in high station density environments
56 88,79,527 Access point processor for a wireless local area network utilizing multiple sub-channels
57 84,46,996 Sampling resolution and gain controller for a wireless receiver
58 95,21,579 Method and Apparatus for Rate Adaptation in a Wireless Communication System
59 94,77,292 Wakeup Controller Apparatus and Method for Ultra Low Power Wireless Communications
60 94,78,859 Multi-Band Compact Printed Circuit Antenna for WLAN Use
61 D802,564 Compact Multi-Band Antenna
62 95,20,646 Dual-band compact printed circuit antenna for WLAN use
63 96,97,162 IoT Product Synthesis Apparatus and Method
64 97,03,899 IoT Product Synthesis Apparatus and Method
65 97,42,412 Low Power Wireless Receiver for Congested Networks operating with Beacon Frames
66 98,88,096 Multi-protocol processor for mobile automotive networks
67 99,46,323 Encrypted Wakeup Controller Apparatus and Method for Ultra Low Power Wireless Communications
68 D798,845 Compact dual-band WLAN antenna

Wireless

# Patent Number Patent Name
1 72,98,799 All-tap fractionally spaced, serial rake combiner apparatus and method
2 73,86,074 Digital automatic gain control method and apparatus
3 74,12,000 Maximum likelihood block decision feedback estimation for CCK demodulation apparatus and method
4 72,18,896 Multiplexed Wireless Receiver and Transmitter
5 72,98,772 Packet detection, symbol timing, and coarse frequency estimation in an OFDM communications system
6 75,93,459 Wireless Link Simulator
7 78,70,468 Reed-Solomon Decoder using a Configurable Arithmetic Processor
8 72,95,144 Quantizer Responsive to Noise Level for a Wireless Communication System
9 76,34,000 Noise estimator for a communications system
10 79,86,738 Peak to average power ratio reduction apparatus and method for a wireless OFDM transmitter
11 80,73,085 Analog to digital converter bit width and gain controller for a wireless receiver
12 82,59,786 Channel estimation filter for OFDM receiver
13 81,49,965 Level Sensitive Packet Detector
14 79,65,782 Reduced complexity maximum likelihood decoder for MIMO communications
15 80,81,700 Power Allocation Method for MIMO Transmit Beamforming
16 80,05,179 Preamble Detection in a Multi-Antenna MIMO 802.16e Receiver
17 78,44,007 Combined OFDMA preamble index identification, integer frequency offset estimation, and preamble CINR measurement
18 79,57,273 Packet re-transmission controller for block acknowledgement in a communications system
19 81,07,518 Stream Weight Estimation and Compensation in SIMO/MIMO OFDM Receivers
20 74,50,911 Multiplexed Wireless Receiver and Transmitter
21 81,60,190 IIR receive filter for OFDM baseband processor
22 75,93,456 Maximum Likelihood Block Decision Feedback Estimation for CCK Demodulation Apparatus and Method
23 80,77,591 Combined OFDMA preamble index identification, integer frequency offset estimation, and preamble CINR measurement
24 81,49,966 Packet acquisition controller with signal strength threshold control for wireless MIMO receiver
25 80,90,062 Process for packet detection
26 80,90,035 Method for setting inter-packet gain
27 81,65,251 Interpolation IIR filter for OFDM baseband processing
28 81,51,155 Packet Re-transmission controller for block acknowledgement in a communications system
29 82,23,906 Interpolation IIR filter for OFDM baseband processing
30 81,55,220 Interpolation IIR filter for OFDM baseband processing
31 84,52,830 Programmable CORDIC processor with stage re-use
32 81,39,699 Process for preamble detection in a multi-stream 802.16E receiver
33 80,31,762 Stream Weight Estimation and Compensation in SIMO/MIMO OFDM Receivers
34 79,36,237 Multi-band transmit-receive switch for wireless transceiver
35 89,71,210 Reconfigurable Multi-Stream Processor for Multiple-Input Multiple-Output (MIMO) Wireless Networks
36 89,37,971 Dual mode WLAN device for dense user environments
37 89,37,968 Received signal strength indication for use as a baseband processor qualifier in high density WLAN environments
38 90,07,969 Automatic time slicing of beacon intervals in high density wireless LAN
39 90,01,753 Assignment and use of wireless LAN channels in high station density environments
40 88,79,527 Access point processor for a wireless local area network utilizing multiple sub-channels
41 84,46,996 Sampling resolution and gain controller for a wireless receiver
42 95,21,579 Method and Apparatus for Rate Adaptation in a Wireless Communication System
43 97,42,412 Low Power Wireless Receiver for Congested Networks operating with Beacon Frames
44 98,88,096 Multi-protocol processor for mobile automotive networks
45 99,46,323 Encrypted Wakeup Controller Apparatus and Method for Ultra Low Power Wireless Communications

Low Power

# Patent Number Patent Name
1 75,93,378 SINR-based power down apparatus and method for a wireless communications systems
2 79,07,555 RSSI-based powerdown apparatus and method for a wireless communications system
3 76,56,970 Apparatus for a wireless communications system using signal energy to control sample resolution and rate
4 80,08,949 Clock Selection for a Communications Processor having a Sleep Mode
5 82,45,063 Clock Selection for a Communications Processor having a Sleep Mode
6 94,77,292 Wakeup Controller Apparatus and Method for Ultra Low Power Wireless Communications

Chip Architecture

# Patent Number Patent Name
1 72,96,100 Packet Buffer Management Apparatus and Method
2 80,51,222 Concatenating secure digital input output (SDIO) interface
3 81,61,205 Packet Buffer Management Apparatus and Method
4 74,64,201 Packet Buffer Management Apparatus and Method
5 75,29,865 Packet Buffer Management Apparatus and Method
6 83,32,451 Programmable CORDIC Processor
7 83,96,063 Multi-thread media access controller with per-thread MAC address
8 84,47,799 Process for QR transformation using a CORDIC processor

Processor Architecture

# Patent Number Patent Name
1 73,27,700 Flexible multi-channel multi-thread media access controller and physical layer interface for wireless networks
2 77,61,688 Multiple thread in-order issue in-order completion DSP and micro-controller
3 76,57,683 Cross-thread interrupt controller for a multi-thread processor

Systems

# Patent Number Patent Name
1 96,97,162 IoT Product Synthesis Apparatus and Method
2 97,03,899 IoT Product Synthesis Apparatus and Method

RF

# Patent Number Patent Name

Antenna

# Patent Number Patent Name
1 94,78,859 Multi-Band Compact Printed Circuit Antenna for WLAN Use
2 D802,564 Compact Multi-Band Antenna
3 95,20,646 Dual-band compact printed circuit antenna for WLAN use
4 D798,845 Compact dual-band WLAN antenna