Patents by Inventor Eric J. Ojard
Eric J. Ojard has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9831929Abstract: Differential feedback within multiple user, multiple access, and/or MIMO wireless communications. After full feedback signal(s) have been received by a communication device (e.g., one that is to be performing beamforming for use in subsequent signal transmission), differential feedback signal(s) are received. Those differential feedback signal(s) are employed to update the full feedback signal(s) thereby generating updated/modified full feedback signals. Over time, such updated/modified full feedback signals may subsequently be further updated based upon later received inferential feedback signal(s). Such differential feedback signaling takes advantage of time and/or frequency correlation in a communication channel to provide for reduced feedback overhead by feeding back a difference or delta (?) relative to a previous value. For example, instead of providing full feedback signals in each respective/successive communication, feedback overhead is reduced by providing a difference or delta (?).Type: GrantFiled: August 10, 2015Date of Patent: November 28, 2017Assignee: AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.Inventors: Ron Porat, Matthew James Fischer, Eric J. Ojard
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Patent number: 9668299Abstract: A novel solution is presented in which a MAC (Medium Access Controller) is implemented that includes multiple functionality types. This MAC may include functionality supporting communication according to one or more of the IEEE 802.11 WLAN (Wireless Local Area Network) related standards and also to one or more of the standards generated by the IEEE 802.15.3 PAN (Personal Area Network) working group. By providing this dual functionality of a multi-mode WLAN/PAN MAC, a communication device may adaptively change the manner in which it communicates with other communication devices. For example, in an effort to maximize throughput and overall efficiency of communication within a communication system, certain of the various devices may change from using the WLAN related standards to using the PAN related standards, and vice versa, based on any one or more of a variety of operational parameters including system configuration.Type: GrantFiled: May 27, 2013Date of Patent: May 30, 2017Assignee: Avago Technologies General IP (Singapore) Pte. LtdInventors: Jeyhan Karaoguz, Eric J. Ojard, Edward H. Frank
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Publication number: 20150349860Abstract: Differential feedback within multiple user, multiple access, and/or MIMO wireless communications. After full feedback signal(s) have been received by a communication device (e.g., one that is to be performing beamforming for use in subsequent signal transmission), differential feedback signal(s) are received. Those differential feedback signal(s) are employed to update the full feedback signal(s) thereby generating updated/modified full feedback signals. Over time, such updated/modified full feedback signals may subsequently be further updated based upon later received inferential feedback signal(s). Such differential feedback signaling takes advantage of time and/or frequency correlation in a communication channel to provide for reduced feedback overhead by feeding back a difference or delta (?) relative to a previous value. For example, instead of providing full feedback signals in each respective/successive communication, feedback overhead is reduced by providing a difference or delta (?).Type: ApplicationFiled: August 10, 2015Publication date: December 3, 2015Applicant: BROADCOM CORPORATIONInventors: Ron Porat, Matthew James Fischer, Eric J. Ojard
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Patent number: 9197298Abstract: Group identification and definition within multiple user, multiple access, and/or MIMO wireless communications. A group identification definition field may be transmitted to a number of receiving devices for use in interpreting current or subsequently received packets that include a group identification field (group ID). The group ID can serve a number of functions such as indicating those receiving devices for which the packet is intended, the identification of fields within the packet corresponding to the various devices, certain parameters (e.g., code type, code rate, modulation type, etc.) associated with such fields within the packet, etc. The group identification definition field may be updated or modified to allow for modification of the manner in which subsequent packets, including respective group IDs, are processed. One of a variety of events may direct the group identification definition field may be updated or modified.Type: GrantFiled: June 8, 2010Date of Patent: November 24, 2015Assignee: Broadcom CorporationInventors: Joonsuk Kim, Matthew James Fischer, Peiman Amini, Joseph Paul Lauer, Vinko Erceg, Carlos H. Aldana, Eric J. Ojard, Sirikiat Lek Ariyavisitakul
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Patent number: 9118364Abstract: Differential feedback within multiple user, multiple access, and/or MIMO wireless communications. After full feedback signal(s) have been received by a communication device (e.g., one that is to be performing beamforming for use in subsequent signal transmission), differential feedback signal(s) are received. Those differential feedback signal(s) are employed to update the full feedback signal(s) thereby generating updated/modified full feedback signals. Over time, such updated/modified full feedback signals may subsequently be further updated based upon later received inferential feedback signal(s). Such differential feedback signaling takes advantage of time and/or frequency correlation in a communication channel to provide for reduced feedback overhead by feeding back a difference or delta (?) relative to a previous value. For example, instead of providing full feedback signals in each respective/successive communication, feedback overhead is reduced by providing a difference or delta (?).Type: GrantFiled: September 22, 2011Date of Patent: August 25, 2015Assignee: Broadcom CorporationInventors: Ron Porat, Matthew James Fischer, Eric J. Ojard
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Patent number: 8861447Abstract: Group identification and definition employing look up table (LUT) within multiple user, multiple access, and/or MIMO wireless communications. A LUT provides a very concise representation of the relationship between group IDs and various subsets of wireless communication devices. Each respective group ID can correspond to more than one subset of wireless communication devices, and each when included within corresponding subsets, a given wireless communication device occupies a common, respective location (e.g., first location, second location, etc.) within each of those corresponding subsets. When a received multi-user packet (e.g.Type: GrantFiled: November 19, 2010Date of Patent: October 14, 2014Assignee: Broadcom CorporationInventors: Joonsuk Kim, Eric J. Ojard
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Patent number: 8768253Abstract: Synchronized UWB piconets for SOP (Simultaneously Operating Piconet) performance. A common backbone (either wired or wireless) is employed that provides a common CLK (clock signal) to all of the various PNCs (piconet coordinators) of various piconets that may operate within a sufficiently close region such that interference could undesirably occur. By providing a very reliable CLK signal from a common backbone to all of the PNCs of the various piconets operating within a substantially close proximity to one another, very precise synchronization may be ensured for all of the communications performed therein. The various piconets may then even operate using TDMA (Time Division Multiple Access)—whose performance would be substantially compromised without effective synchronization. In addition, combined TFC (time frequency code) and TDMA may also be employed to support the communications therein thereby providing even another degree of orthogonality that provided by TDMA alone.Type: GrantFiled: April 26, 2012Date of Patent: July 1, 2014Assignee: Broadcom CorporationInventors: Jeyhan Karaoguz, Eric J. Ojard, Edward H. Frank
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Patent number: 8705674Abstract: Multi-band single-carrier modulation. A novel approach is presented by which interference compensation may be performed for signals received by a piconet operable device. The piconet operable device may be implemented within a region that includes two or more SOPs (Simultaneously Operating Piconets). Estimation of the level and location of interference is performed and the input to a decoder (within the piconet operable device) is selectively weighted to ensure that the effect of any existent interference within the signal received by the piconet operable device is minimized. Different interference levels are dealt with differently. For one example, portions of the received signal having undergone a large amount of interference may be simply treated as erasures with respect to the input the decoder. For another example, portions of the received signal having undergone some smaller degree of interference, but some interference nonetheless, may be de-weighted before being provided to the decoder.Type: GrantFiled: November 8, 2010Date of Patent: April 22, 2014Assignee: Broadcom CorporationInventor: Eric J. Ojard
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Publication number: 20130259019Abstract: A novel solution is presented in which a MAC (Medium Access Controller) is implemented that includes multiple functionality types. This MAC may include functionality supporting communication according to one or more of the IEEE 802.11 WLAN (Wireless Local Area Network) related standards and also to one or more of the standards generated by the IEEE 802.15.3 PAN (Personal Area Network) working group. By providing this dual functionality of a multi-mode WLAN/PAN MAC, a communication device may adaptively change the manner in which it communicates with other communication devices. For example, in an effort to maximize throughput and overall efficiency of communication within a communication system, certain of the various devices may change from using the WLAN related standards to using the PAN related standards, and vice versa, based on any one or more of a variety of operational parameters including system configuration.Type: ApplicationFiled: May 27, 2013Publication date: October 3, 2013Applicant: BROADCOM CORPORATIONInventors: Jeyhan Karaoguz, Eric J. Ojard, Edward J. Frank
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Patent number: 8451816Abstract: Multi-mode WLAN/PAN MAC. A novel solution is presented in which a MAC (Medium Access Controller) is implemented that includes multiple functionality types. This MAC may include functionality supporting communication according to one or more of the IEEE 802.11 WLAN (Wireless Local Area Network) related standards and also to one or more of the standards generated by the IEEE 802.15.3 PAN (Personal Area Network) working group. By providing this dual functionality of a multi-mode WLAN/PAN MAC, a communication device may adaptively change the manner in which it communicates with other communication devices. For example, in an effort to maximize throughput and overall efficiency of communication within a communication system, certain of the various devices may change from using the WLAN related standards to using the PAN related standards, and vice versa, based on any one or more of a variety of operational parameters including system configuration.Type: GrantFiled: May 31, 2012Date of Patent: May 28, 2013Assignee: Broadcom CorporationInventors: Jeyhan Karaoguz, Eric J. Ojard, Edward H. Frank
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Publication number: 20120257609Abstract: Multi-mode WLAN/PAN MAC. A novel solution is presented in which a MAC (Medium Access Controller) is implemented that includes multiple functionality types. This MAC may include functionality supporting communication according to one or more of the IEEE 802.11 WLAN (Wireless Local Area Network) related standards and also to one or more of the standards generated by the IEEE 802.15.3 PAN (Personal Area Network) working group. By providing this dual functionality of a multi-mode WLAN/PAN MAC, a communication device may adaptively change the manner in which it communicates with other communication devices. For example, in an effort to maximize throughput and overall efficiency of communication within a communication system, certain of the various devices may change from using the WLAN related standards to using the PAN related standards, and vice versa, based on any one or more of a variety of operational parameters including system configuration.Type: ApplicationFiled: May 31, 2012Publication date: October 11, 2012Applicant: BROADCOM CORPORATIONInventors: Jeyhan Karaoguz, Eric J. Ojard, Edward H. Frank
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Patent number: 8279987Abstract: A filter settings generation operation includes sampling a communication channel to produce a sampled signal. The sampled signal is spectrally characterized across a frequency band of interest to produce a spectral characterization of the sampled signal. This spectral characterization may not include a signal of interest. The spectral characterization is then modified to produce a modified spectral characterization. Filter settings are then generated based upon the modified spectral characterization. Finally, the communication channel is filtered using the filter settings when the signal of interest is present on the communication channel. In modifying the spectral characterization, pluralities of spectral characteristics of the spectral characterization are independently modified to produce the modified spectral characterization. Modifications to the spectral characterization may be performed in the frequency domain and/or the time domain.Type: GrantFiled: February 14, 2011Date of Patent: October 2, 2012Assignee: Broadcom CorporationInventors: Thomas J. Kolze, Bruce J. Currivan, Jonathan S. Min, Eric J. Ojard, James Chi Thi, Daniel H. Howard
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Publication number: 20120218980Abstract: Synchronized UWB piconets for SOP (Simultaneously Operating Piconet) performance. A common backbone (either wired or wireless) is employed that provides a common CLK (clock signal) to all of the various PNCs (piconet coordinators) of various piconets that may operate within a sufficiently close region such that interference could undesirably occur. By providing a very reliable CLK signal from a common backbone to all of the PNCs of the various piconets operating within a substantially close proximity to one another, very precise synchronization may be ensured for all of the communications performed therein. The various piconets may then even operate using TDMA (Time Division Multiple Access)—whose performance would be substantially compromised without effective synchronization. In addition, combined TFC (time frequency code) and TDMA may also be employed to support the communications therein thereby providing even another degree of orthogonality that provided by TDMA alone.Type: ApplicationFiled: April 26, 2012Publication date: August 30, 2012Applicant: BROADCOM CORPORATIONInventors: Jeyhan Karaoguz, Eric J. Ojard, Edward H. Frank
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Patent number: 8208449Abstract: A novel solution is presented in which a MAC (Medium Access Controller) is implemented that includes multiple functionality types. This MAC may include functionality supporting communication according to one or more of the IEEE 802.11 WLAN (Wireless Local Area Network) related standards and also to one or more of the standards generated by the IEEE 802.15.3 PAN (Personal Area Network) working group. By providing this dual functionality of a multi-mode WLAN/PAN MAC, a communication device may adaptively change the manner in which it communicates with other communication devices. For example, in an effort to maximize throughput and overall efficiency of communication within a communication system, certain of the various devices may change from using the WLAN related standards to using the PAN related standards, and vice versa, based on any one or more of a variety of operational parameters including system configuration.Type: GrantFiled: August 31, 2004Date of Patent: June 26, 2012Assignee: Broadcom CorporationInventors: Jeyhan Karaoguz, Eric J. Ojard, Edward H. Frank
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Patent number: 8170484Abstract: Synchronized UWB piconets for SOP (Simultaneously Operating Piconet) performance. A common backbone (either wired or wireless) is employed that provides a common CLK (clock signal) to all of the various PNCs (piconet coordinators) of various piconets that may operate within a sufficiently close region such that interference could undesirably occur. By providing a very reliable CLK signal from a common backbone to all of the PNCs of the various piconets operating within a substantially close proximity to one another, very precise synchronization may be ensured for all of the communications performed therein. The various piconets may then even operate using TDMA (Time Division Multiple Access)—whose performance would be substantially compromised without effective synchronization. In addition, combined TFC (time frequency code) and TDMA may also be employed to support the communications therein thereby providing even another degree of orthogonality that provided by TDMA alone.Type: GrantFiled: July 5, 2010Date of Patent: May 1, 2012Assignee: Broadcom CorporationInventors: Jeyhan Karaoguz, Eric J. Ojard, Edward H. Frank
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Publication number: 20120087304Abstract: Differential feedback within multiple user, multiple access, and/or MIMO wireless communications. After full feedback signal(s) have been received by a communication device (e.g., one that is to be performing beamforming for use in subsequent signal transmission), differential feedback signal(s) are received. Those differential feedback signal(s) are employed to update the full feedback signal(s) thereby generating updated/modified full feedback signals. Over time, such updated/modified full feedback signals may subsequently be further updated based upon later received inferential feedback signal(s). Such differential feedback signaling takes advantage of time and/or frequency correlation in a communication channel to provide for reduced feedback overhead by feeding back a difference or delta (?) relative to a previous value. For example, instead of providing full feedback signals in each respective/successive communication, feedback overhead is reduced by providing a difference or delta (?).Type: ApplicationFiled: September 22, 2011Publication date: April 12, 2012Applicant: BROADCOM CORPORATIONInventors: Ron Porat, Matthew James Fischer, Eric J. Ojard
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Publication number: 20110064173Abstract: Multi-band single-carrier modulation. A novel approach is presented by which interference compensation may be performed for signals received by a piconet operable device. The piconet operable device may be implemented within a region that includes two or more SOPs (Simultaneously Operating Piconets). Estimation of the level and location of interference is performed and the input to a decoder (within the piconet operable device) is selectively weighted to ensure that the effect of any existent interference within the signal received by the piconet operable device is minimized. Different interference levels are dealt with differently. For one example, portions of the received signal having undergone a large amount of interference may be simply treated as erasures with respect to the input the decoder. For another example, portions of the received signal having undergone some smaller degree of interference, but some interference nonetheless, may be de-weighted before being provided to the decoder.Type: ApplicationFiled: November 8, 2010Publication date: March 17, 2011Applicant: BROADCOM CORPORATIONInventor: Eric J. Ojard
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Publication number: 20110064040Abstract: Group identification and definition employing look up table (LUT) within multiple user, multiple access, and/or MIMO wireless communications. A LUT provides a very concise representation of the relationship between group IDs and various subsets of wireless communication devices. Each respective group ID can correspond to more than one subset of wireless communication devices, and each when included within corresponding subsets, a given wireless communication device occupies a common, respective location (e.g., first location, second location, etc.) within each of those corresponding subsets. When a received multi-user packet (e.g.Type: ApplicationFiled: November 19, 2010Publication date: March 17, 2011Applicant: BROADCOM CORPORATIONInventors: Joonsuk Kim, Eric J. Ojard
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Patent number: 7894323Abstract: A Home Phoneline system operating within a Multiple Dwelling Unit includes a Home Phoneline Access Multiplexer (HPAN) that services a plurality of Home Phoneline networks, each including at least one Home Phoneline station. The HPAN synchronizes upstream and downstream transmissions to eliminate Near-Far cross-talk. According to a second operation of the present invention, the HPAN manages the transmission power of the HomePNA stations of the HomePNA networks to reduce Near-Near and Far-Far cross-talk. To optimize throughput across the whole building, station power levels are adjusted based on their location in terms of amounts of attenuation. A third method of operation according to the present invention includes adjusting the receiver sensitivity of the Home Phoneline stations according to detected or characterized levels of cross-talk within the MDU.Type: GrantFiled: July 2, 2009Date of Patent: February 22, 2011Assignee: Broadcom CorporationInventor: Eric J. Ojard
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Patent number: 7889821Abstract: A filter settings generation operation includes sampling a communication channel to produce a sampled signal. The sampled signal is spectrally characterized across a frequency band of interest to produce a spectral characterization of the sampled signal. This spectral characterization may not include a signal of interest. The spectral characterization is then modified to produce a modified spectral characterization. Filter settings are then generated based upon the modified spectral characterization. Finally, the communication channel is filtered using the filter settings when the signal of interest is present on the communication channel. In modifying the spectral characterization, pluralities of spectral characteristics of the spectral characterization are independently modified to produce the modified spectral characterization. Modifications to the spectral characterization may be performed in the frequency domain and/or the time domain.Type: GrantFiled: July 27, 2009Date of Patent: February 15, 2011Assignee: Broadcom CorporationInventors: Thomas J. Kolze, Bruce J. Currivan, Jonathan S. Min, Eric J. Ojard, James Chi Thi, Daniel H. Howard