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公开(公告)号：US11487495B2
公开(公告)日：2022-11-01
申请号：US17174488
申请日：2021-02-12
Applicant: QUALCOMM Incorporated
Inventor： Lior Amarilio , Nileena Pathalayi Alakandy , Syed Naseef
Abstract: Systems and methods for essentially continuous audio flow for Internet of Things (IoT) devices during power mode transitions contemplate an audio bus, such as a SOUNDWIRE audio bus, to maintain an audio stream during a clock transition without having to tear down the audio stream as a new clock becomes active on the audio bus. By preserving the audio stream during such a transition, gaps in the audio are avoided resulting in better performance and end user experience.
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公开(公告)号：US20210382677A1
公开(公告)日：2021-12-09
申请号：US16894096
申请日：2020-06-05
Applicant: QUALCOMM Incorporated
Inventor： Lior Amarilio , Sharon Graif , Jason Gonzalez
IPC: G06F3/16 , G06F13/362 , G06F13/42 , G06F13/40
Abstract: Systems and methods for fast activation of slaves during wake up in an audio system allow a master device in an audio system such as a SOUNDWIRE audio system to send system and/or topology information to capable slave devices during a wake up window so that the slaves may start in an active mode rather than a safe mode. In the most recent proposed versions of SOUNDWIRE, there is a check PHY_Num phase. The systems for fast activation of slaves cause a negative differential line to be driven with an encoded signal by the master during a check PHY_Num phase where the encoded signal indicates a fast mode speed. Capable slaves may then begin in a fast mode rather than a safe (and slow) mode. Latency may be reduced by starting in a fast mode, which may improve the user's audio experience.
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公开(公告)号：US20190354502A1
公开(公告)日：2019-11-21
申请号：US16409030
申请日：2019-05-10
Applicant: QUALCOMM Incorporated
Inventor： Tomer Rafael Ben-Chen , Lior Amarilio , Sharon Graif
Abstract: Lightweight Universal Serial Bus (USB) compound device implementation is disclosed. In particular, a compound device is provided that includes a parsing circuit that parses addresses and endpoint values for comparison to a look-up table and translation thereof for provision of updated addresses and endpoint values to a USB device controller. The USB device controller then uses the updated endpoint values to route information to a correct destination. In this manner, the benefits of a USB compound device are provided without the area and power penalty that normally accompanies a USB compound device.
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公开(公告)号：US10416955B2
公开(公告)日：2019-09-17
申请号：US15725813
申请日：2017-10-05
Applicant: QUALCOMM Incorporated
Inventor： Alexander Khazin , Lior Amarilio
Abstract: Power reduction through clock management techniques are disclosed. In one aspect, the clock management is applied to a clock signal on a SOUNDWIRE™ communication bus. In particular, a control system associated with a master device on the communication bus may evaluate frequency requirements of audio streams on the communication bus and select a lowest possible clock frequency that meets the frequency requirements. Lower clock frequencies result in fewer clock transitions and result in a net power saving relative to higher clock frequencies. In the event of a clock frequency change, the master device communicates the clock frequency that will be used prospectively to slave devices on the communication bus, and all devices transition to the new frequency at the same frame boundary. In addition to the power savings, exemplary aspects of the present disclosure do not impact an active audio stream.
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公开(公告)号：US10359827B1
公开(公告)日：2019-07-23
申请号：US15998433
申请日：2018-08-15
Applicant: QUALCOMM Incorporated
Inventor： Lior Amarilio , Sandeep Kumar , Suman Kumar
Abstract: A number of ones in the difference between a current pulse code modulated (PCM) audio sample and an immediately preceding audio sample is compared to a number of ones in the current audio sample to determine which has the fewer number of ones. The audio source sends either the difference or the current audio sample, whichever has fewer ones. By reducing the number of ones sent over a non-return to zero inverted (NRZI) audio bus from an audio source to an audio sink, the number of transitions is reduced, which reduces the power consumed relative to a transmission that does not use this process.
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Patent Agency Ranking
公开(公告)号：US20190155781A1
公开(公告)日：2019-05-23
申请号：US15819641
申请日：2017-11-21
Applicant: QUALCOMM Incorporated
Inventor： Lior Amarilio , Yuval Corey Hershko , Nir Strauss
IPC: G06F13/42 , G06F13/364 , G06F15/78
CPC classification number: G06F13/4291 , G06F1/3287 , G06F13/362 , G06F13/364 , G06F15/7807
Abstract: Systems and methods to transfer master duties to a slave on a communication bus are disclosed. A master of a communication bus determines that one or more slaves are capable of serving as a sub-master, including providing a clock signal and owning control information bits. Once that determination is made, the master may determine that processing within the master is not required for a particular activity on the bus. The master then alerts one such capable slave to prepare to assume sub-master duties. Once the slave confirms that the slave is ready to assume the sub-master duties, the master may transmit a handover frame on the bus, and the slave begins acting as a sub-master. The master may then enter a low-power state, which may promote power savings, reduce heat generation, and provide other advantages.
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公开(公告)号：US20180196776A1
公开(公告)日：2018-07-12
申请号：US15402519
申请日：2017-01-10
Applicant: QUALCOMM Incorporated
Inventor： Yuval Corey Hershko , Lior Amarilio , Nir Strauss
IPC: G06F13/42
CPC classification number: G06F13/4291
Abstract: Data bus activation in an electronic device is provided. In one aspect, a host circuit determines a cumulative potential representing a cumulative fractional bus activation vote on a data line(s) in the data bus. The host circuit activates the data bus when the cumulative potential is greater than a configurable bus activation threshold. In another aspect, a device circuit(s) determines a selected signal strength threshold that is less than determined signal strength of an incoming signal. Accordingly, the device circuit(s) asserts a fractional potential corresponding to the selected signal strength threshold on the data line(s) as a fractional bus activation vote in the cumulative fractional bus activation vote. By activating the data bus based on the cumulative fractional bus activation vote, the host circuit can support timely data bus activation while preventing the data bus from being falsely activated, thus improving robustness of data bus activation in the electronic device.
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公开(公告)号：US09949010B2
公开(公告)日：2018-04-17
申请号：US15145089
申请日：2016-05-03
Applicant: QUALCOMM Incorporated
Inventor： Lior Amarilio , Terrence Brian Remple
CPC classification number: H04R1/1033 , G06F3/162 , G06F13/4045 , H04B1/3833 , H04R3/005 , H04R3/12
Abstract: Low latency transmission systems and methods for long distances in SOUNDWIRE systems are disclosed. In an exemplary aspect, a SOUNDWIRE sub-system is coupled to a long cable through a bridge. The bridge converts SOUNDWIRE signals to signals for transmission over the long cable and converts the signals from the long cable to the SOUNDWIRE signals for transmission in the SOUNDWIRE sub-system. Conversion between signal types may include concatenating signals of a similar type into a group that is serially transmitted over the long cable. Concatenation of bit slots in this manner consumes minimal overhead in bus turnaround, thereby reducing latency. In further aspects, the functionality of the bridge may be incorporated into a headset or a mobile terminal.
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公开(公告)号：US09913031B2
公开(公告)日：2018-03-06
申请号：US15087208
申请日：2016-03-31
Applicant: QUALCOMM Incorporated
Inventor： Lior Amarilio , Amit Gil , Oded Schnitzer
Abstract: Systems and methods for handling silence in audio streams are disclosed. In one aspect, a transmitter detects a halt in an audio stream. After detection of the halt in the audio stream, the transmitter embeds a silence signal into the audio stream and transmits the silence signal to associated receivers. The associated receivers may respond to the embedded silence signal by “playing” silence or by using the silence signal to activate a silence protocol. In either event, the associated receivers do not receive the original audio halt and do not produce an unwanted audio artifact.
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公开(公告)号：US20170289679A1
公开(公告)日：2017-10-05
申请号：US15087208
申请日：2016-03-31
Applicant: QUALCOMM Incorporated
Inventor： Lior Amarilio , Amit Gil , Oded Schnitzer
IPC: H04R3/00 , G10L19/018
CPC classification number: H04R3/007 , G06F3/165 , G06F13/38 , G10L19/012 , G10L19/167 , H03G3/341 , H03G3/348
Abstract: Systems and methods for handling silence in audio streams are disclosed. In one aspect, a transmitter detects a halt in an audio stream. After detection of the halt in the audio stream, the transmitter embeds a silence signal into the audio stream and transmits the silence signal to associated receivers. The associated receivers may respond to the embedded silence signal by “playing” silence or by using the silence signal to activate a silence protocol. In either event, the associated receivers do not receive the original audio halt and do not produce an unwanted audio artifact.
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