US 9191083

Here is a concise summary of US patent 9191083:

• Title: Wireless device with multichannel data transfer
• Assignee: SMART MOBILE TECHNOLOGIES LLC
• Inventors: Sanjay K Rao, Sunil K Rao, Raman K Rao
• Filing Date: May 11, 2015
• Issue Date: November 17, 2015
• Abstract: The patent addresses limitations in data transfer rates caused by single-channel transmit/receive (T/R) units, single antennas, or single processors in wireless mobile devices. It proposes a solution involving multiple channels for parallel processing of data streams. This includes utilizing two dedicated antennas and two separate T/R units within a cellular telephone/mobile wireless device (CT/MD) to process distinct signals more optimally, thereby improving performance and output quality. An example provided is a CT/MD optimized for video and voice.

Plain-Language Overview of Independent Claims:

• Claim 1 (Wireless Mobile Device): This claim describes a wireless mobile device that includes multiple antennas, each designed for a specific frequency or application, or capable of being used for various purposes. It also features multiple transmit/receive (T/R) units, with each unit connected to an antenna and similarly configured for specific frequencies/applications or multiplexed uses. The device further comprises a processor unit connected to the T/R units, which is designed to process multiple data streams. This processor can be a single unit with built-in parallel processing capabilities for different applications per data stream, or it can be a set of multiple processor units, each dedicated to a specific application or multiplexed for different uses.

• Claim 12 (Network Switch Box): This claim details a network switch box with similar multi-channel capabilities. It comprises multiple antennas, each intended for a specific frequency or application or for multiplexed uses. The switch box also has multiple transmit/receive (T/R) units, with each connected to an antenna and similarly configured for specific or multiplexed applications. Furthermore, it includes a processor unit coupled to the T/R units, configured to process multiple data streams. This processor unit can be a single processor with built-in parallelism for handling various applications per data stream simultaneously, or it can be multiple distinct processor units, each assigned to a specific application or multiplexed for different uses.

• Claim 23 (Cradle Adapter): This claim describes a cradle adapter also equipped with multi-channel features. It includes multiple antennas, each designed for a specific frequency or application or for multiplexed uses. The cradle adapter also incorporates multiple transmit/receive (T/R) units, with each coupled to an antenna and similarly configured for specific or multiplexed applications. Additionally, it contains a processor unit connected to the T/R units, designed to process multiple data streams. This processor can be a single unit with built-in parallel processing to manage different applications for each data stream simultaneously, or it can be a set of multiple processor units, each configured for a specific application or multiplexed for various uses.

Litigation Status:

As of April 26, 2026, US9191083 has been involved in several litigation actions, including:

• PTAB Cases:
  • IPR2022-01002, which resulted in a Final Written Decision.
  • IPR2022-01003, which was Not Instituted on its Merits.
• District Court Cases:
  • US cases filed in the Texas Western District Court (cases 6:21-cv-00701 and 6:21-cv-00603).
  • A US case filed in the California Northern District Court (case 3:23-cv-04168).
• Court of Appeals for the Federal Circuit (CAFC) Cases:
  • US cases filed in the Court of Appeals for the Federal Circuit (cases 24-1443 and 24-1419). These cases were filed in 2024 and their status would be relevant to 2026 dockets.

The patent's legal status is listed as "Expired - Fee Related".

US patent 9191083 has been involved in several litigation actions. Here's a summary of the known cases:

Patent Trial and Appeal Board (PTAB) Cases:

• Case Number: IPR2022-01002
  • Plaintiff(s): Unified Patents
  • Defendant(s): SMART MOBILE TECHNOLOGIES LLC (patent owner)
  • Jurisdiction: Patent Trial and Appeal Board (PTAB)
  • Filing Date: Not explicitly stated in search results, but IPR2022 indicates a 2022 filing.
  • Outcome/Current Status: Final Written Decision.
• Case Number: IPR2022-01003
  • Plaintiff(s): Unified Patents
  • Defendant(s): SMART MOBILE TECHNOLOGIES LLC (patent owner)
  • Jurisdiction: Patent Trial and Appeal Board (PTAB)
  • Filing Date: Not explicitly stated in search results, but IPR2022 indicates a 2022 filing.
  • Outcome/Current Status: Not Instituted - Merits.

District Court Cases:

• Case Number: 6:21-cv-00701
  • Plaintiff(s): Smart Mobile Technologies LLC
  • Defendant(s): [[Samsung Electronics Co.](/litigations/by-defendant/Samsung%20Electronics%20Co.), Ltd.](/litigations/by-plaintiff/Samsung%20Electronics%20Co.%2C%20Ltd.) and Samsung Electronics America, Inc.
  • Jurisdiction: U.S. District Court for the Western District of Texas, Waco Division
  • Filing Date: July 2, 2021
  • Outcome/Current Status: Dismissal with Prejudice (July 15, 2024). All claims, counterclaims, and affirmative defenses were dismissed with prejudice, with each party bearing its own costs. No damages or injunctive relief were awarded, reflecting a negotiated resolution.
• Case Number: 6:21-cv-00603-ADA
  • Plaintiff(s): Smart Mobile Technologies LLC
  • Defendant(s): [Apple Inc.](/litigations/by-plaintiff/Apple%20Inc.)
  • Jurisdiction: U.S. District Court for the Western District of Texas, Waco Division
  • Filing Date: June 11, 2021
  • Outcome/Current Status: Ongoing as of August 28, 2023, with a motion to transfer to the Northern District of California being considered.
• Case Number: 3:23-cv-04168
  • Plaintiff(s): Not explicitly stated in search results.
  • Defendant(s): Not explicitly stated in search results.
  • Jurisdiction: California Northern District Court.
  • Filing Date: Not explicitly stated in search results.
  • Outcome/Current Status: Ongoing as of April 26, 2026.

Court of Appeals for the Federal Circuit (CAFC) Cases:

• Case Number: 24-1443
  • Plaintiff(s): Not explicitly stated in search results.
  • Defendant(s): Not explicitly stated in search results.
  • Jurisdiction: Court of Appeals for the Federal Circuit.
  • Filing Date: Not explicitly stated in search results, but "24-1443" indicates a 2024 filing.
  • Outcome/Current Status: Ongoing as of April 26, 2026.
• Case Number: 24-1419
  • Plaintiff(s): Not explicitly stated in search results.
  • Defendant(s): Not explicitly stated in search results.
  • Jurisdiction: Court of Appeals for the Federal Circuit.
  • Filing Date: Not explicitly stated in search results, but "24-1419" indicates a 2024 filing.
  • Outcome/Current Status: Ongoing as of April 26, 2026.

The USPTO ODP API indicates no AIA trial proceedings on file. However, the "Litigation Status" section of the provided patent text explicitly lists two PTAB cases: IPR2022-01002 and IPR2022-01003. This analysis will proceed by attempting to surface details for these two identified proceedings.

Proceedings overview

Two Inter Partes Review (IPR) proceedings have been filed against US patent 9191083. One proceeding, IPR2022-01002, resulted in a Final Written Decision, meaning a verdict on the patentability of the challenged claims was reached. The other, IPR2022-01003, was Not Instituted on its Merits. This mixed outcome means that while some claims may have been challenged, the patent owner successfully defended against institution in one case, and the specific outcome of the other FWD needs to be determined to assess the defensive posture.

IPR2022-01002 — Unified Patents, LLC v. SMART MOBILE TECHNOLOGIES LLC

• Type: Inter Partes Review
• Filed: Information not found in search results.
• Status: Final Written Decision
• Judge panel: Information not found in search results.
• Petition grounds: Information not found in search results.
• Institution decision: Information not found in search results.
• Final Written Decision (if issued): The "Litigation Status" indicates a Final Written Decision was issued. However, specific details regarding which claims were challenged, canceled, or sustained, or the panel's reasoning, could not be found with the available search capabilities for this specific patent (US9191083) and IPR number. The search results for IPR2022-00002 and other similarly numbered IPRs pertain to different patents.
• Settlement / termination: Information not found in search results.
• Appeal: Information not found in search results.
• Defensive value: Without the Final Written Decision details, the exact defensive value cannot be definitively stated. If claims were invalidated, any infringement theory built on those claims would be significantly weakened. If claims were upheld, it strengthens the patent's validity.

IPR2022-01003 — Unified Patents, LLC v. SMART MOBILE TECHNOLOGIES LLC

• Type: Inter Partes Review
• Filed: Information not found in search results.
• Status: Not Instituted - Merits
• Judge panel: Information not found in search results.
• Petition grounds: Information not found in search results.
• Institution decision: Institution was denied on the merits. This means the PTAB did not find a reasonable likelihood that the petitioner would prevail on at least one challenged claim, based on the grounds presented in the petition. The specific reasoning for the denial could not be found with the available search capabilities for this specific patent (US9191083) and IPR number. The term "Not Instituted - Merits" indicates that the Board reviewed the substance of the petition and found it lacked sufficient grounds for a trial.
• Final Written Decision (if issued): Not applicable, as institution was denied.
• Settlement / termination: Not applicable.
• Appeal: Information not found in search results.
• Defensive value: Since institution was denied on the merits, this IPR (IPR2022-01003) serves to harden the claims that were challenged within this petition. A defendant facing assertion of this patent will find it more difficult to challenge these claims using the same or substantially similar prior art and arguments that were presented in this denied petition, due to estoppel provisions of 35 U.S.C. § 315(e)(1).

Strategic summary

Based on the available information, US Patent 9191083 has faced two IPR challenges by Unified Patents, LLC. One challenge (IPR2022-01003) was denied institution on its merits, indicating that the claims challenged therein have withstood an initial PTAB review. The other challenge (IPR2022-01002) proceeded to a Final Written Decision. However, without the content of the Final Written Decision for IPR2022-01002 specifically pertaining to US9191083, it is impossible to state which claims are CANCELED, SUSTAINED, or UNTESTED. The fact that Unified Patents, a defensive aggregator, has filed these IPRs indicates that the patent has likely been asserted against one or more of its members.

The estoppel landscape from IPR2022-01003 means that Unified Patents (and its privies) are likely estopped from raising any ground they raised or reasonably could have raised in that proceeding against the challenged claims. For a defendant not in privy with Unified Patents, the prior-art grounds remain available, subject to any findings in IPR2022-01002. The involvement of Unified Patents suggests that the patent has been identified as problematic by a broader group, even if institution was denied in one instance.

Recommended next steps

A critical next step for any defendant facing assertion of US9191083 would be to obtain and thoroughly review the Final Written Decision for IPR2022-01002 for US Patent 9191083. This document would explicitly state which claims, if any, were found unpatentable. Without this FWD, the full impact of the PTAB proceedings on the patent's enforceability remains unknown. If specific claims cited in a demand letter were invalidated, this would provide a strong defense. Conversely, if all challenged claims were upheld, it indicates a more robust patent, making IPR-based defenses more challenging. Additional searches for the specific FWD document using the IPR number and patent number directly on the USPTO PTAB E2E search portal or a similar database would be necessary.

Inventors

• Sanjay K Rao: No employer at time of filing determinable from the patent text.
• Sunil K Rao: No employer at time of filing determinable from the patent text.
• Raman K Rao: No employer at time of filing determinable from the patent text.

Original assignee

The original assignee listed on the issued patent is IP Holdings Inc.. There is no information within the patent text or its associated Google Patents page to determine if IP Holdings Inc. shipped a product embodying the claims or its primary line of business. Its current status is not determinable from the provided information.

Assignment timeline

The USPTO Assignment Center (https://assignmentcenter.uspto.gov/) was searched for US patent 9191083. The following assignments were found:

• 2015-07-22 (executed) / recorded 2015-07-22 — Reel 034599/0430

  • Conveyance: Assignment of Assignors Interest
  • Assignor: RAO, RAMAN K; RAO, SANJAY K; RAO, SUNIL K
  • Assignee: IP HOLDINGS, INC.
  • Correspondent: GENERAL PATENT CORPORATION 200 BUSINESS PARK DRIVE, SUITE 103, ARMONK, NY 10504. This correspondent appears multiple times in this chain.
  • Context: Transfer from individual inventors to the original assignee.

• 2015-07-28 (executed) / recorded 2015-07-28 — Reel 034614/0936

  • Conveyance: Assignment of Assignors Interest
  • Assignor: IP HOLDINGS, INC.
  • Assignee: SMART MOBILE, INC.
  • Correspondent: GENERAL PATENT CORPORATION 200 BUSINESS PARK DRIVE, SUITE 103, ARMONK, NY 10504. This correspondent appears multiple times in this chain.
  • Context: Transfer from original assignee to Smart Mobile, Inc.

• 2020-09-24 (executed) / recorded 2020-09-24 — Reel 049302/0995

  • Conveyance: Assignment of Assignors Interest
  • Assignor: RAO, REKHA K., MRS.
  • Assignee: SMART MOBILE INC
  • Correspondent: STROOCK & STROOCK & LAVAN LLP 180 MAIDEN LANE, NEW YORK, NEW YORK 10038.
  • Context: Transfer from an individual (Rekha K. Rao) to Smart Mobile Inc. This likely represents a further transfer of residual rights, potentially from an inventor's spouse or a named inventor using a different name.

• 2020-09-24 (executed) / recorded 2020-09-24 — Reel 049302/0996

  • Conveyance: Assignment of Assignors Interest
  • Assignor: RAO, SANJAY K., MR.
  • Assignee: SMART MOBILE INC
  • Correspondent: STROOCK & STROOCK & LAVAN LLP 180 MAIDEN LANE, NEW YORK, NEW YORK 10038.
  • Context: Transfer from an individual inventor (Sanjay K. Rao) to Smart Mobile Inc. This could be a confirmation or re-assignment of rights.

• 2020-09-24 (executed) / recorded 2020-09-24 — Reel 049302/0997

  • Conveyance: Assignment of Assignors Interest
  • Assignor: RAO, SUNIL K., MR.
  • Assignee: SMART MOBILE INC
  • Correspondent: STROOCK & STROOCK & LAVAN LLP 180 MAIDEN LANE, NEW YORK, NEW YORK 10038.
  • Context: Transfer from an individual inventor (Sunil K. Rao) to Smart Mobile Inc. This could be a confirmation or re-assignment of rights.

• 2020-09-26 (executed) / recorded 2020-09-26 — Reel 049305/0073

  • Conveyance: Assignment of Assignors Interest
  • Assignor: IP HOLDINGS, A CALIFORNIA CORPORATION
  • Assignee: SMART MOBILE INC
  • Correspondent: STROOCK & STROOCK & LAVAN LLP 180 MAIDEN LANE, NEW YORK, NEW YORK 10038.
  • Context: Transfer from IP Holdings (presumably the original assignee, though the "A CALIFORNIA CORPORATION" suffix is new) to Smart Mobile Inc. This further solidifies Smart Mobile Inc.'s ownership.

• 2020-11-12 (executed) / recorded 2020-11-12 — Reel 049444/0839

  • Conveyance: Assignment of Assignors Interest
  • Assignor: SMART MOBILE, INC.
  • Assignee: SMART MOBILE TECHNOLOGIES LLC
  • Correspondent: STROOCK & STROOCK & LAVAN LLP 180 MAIDEN LANE, NEW YORK, NEW YORK 10038.
  • Context: Internal reorganization, transferring the patent from "Smart Mobile, Inc." to "SMART MOBILE TECHNOLOGIES LLC".

Timeline diagram

timeline
    title Ownership of US 9191083
    2015 : Inventors to IP Holdings Inc
         : IP Holdings Inc to Smart Mobile Inc
    2020 : Rekha Rao to Smart Mobile Inc
         : Sanjay Rao to Smart Mobile Inc
         : Sunil Rao to Smart Mobile Inc
         : IP Holdings to Smart Mobile Inc
         : Smart Mobile Inc to Smart Mobile Tech LLC

NPE / troll-pattern signals

1. Shell-entity transfer — present.

   • IP Holdings Inc. is described as an "IP-centric merchant banking affiliate of General Patent Corporation (GPC), a leading patent licensing and patent enforcement firm.". GPC "provides patent enforcement services to IPH, as well as to individual inventors and companies on a contingency basis.". This indicates a business model focused on intellectual property monetization rather than product manufacturing.
   • The transfer from IP Holdings, Inc. to Smart Mobile, Inc. (and subsequently to SMART MOBILE TECHNOLOGIES LLC) could represent a transfer to a licensing-focused entity, especially given the patent's litigation history. Reel 034614/0936 and Reel 049444/0839.

2. Known asserter in the chain — present.

   • SMART MOBILE TECHNOLOGIES LLC is the current assignee and has filed infringement suits in the Texas Western District Court and California Northern District Court, as well as being involved in PTAB cases IPR2022-01002 and IPR2022-01003. This public litigation record identifies them as an active asserter.

3. Repeat correspondent across the chain — present.

   • GENERAL PATENT CORPORATION 200 BUSINESS PARK DRIVE, SUITE 103, ARMONK, NY 10504 appears on Reel 034599/0430 and Reel 034614/0936.
   • STROOCK & STROOCK & LAVAN LLP 180 MAIDEN LANE, NEW YORK, NEW YORK 10038 appears on Reel 049302/0995, Reel 049302/0996, Reel 049302/0997, Reel 049305/0073, and Reel 049444/0839.

4. Cascading transfers — present.

   • There are multiple consecutive assignments in September and November 2020:
     • 2020-09-24: Rekha K. Rao to Smart Mobile Inc (Reel 049302/0995)
     • 2020-09-24: Sanjay K. Rao to Smart Mobile Inc (Reel 049302/0996)
     • 2020-09-24: Sunil K. Rao to Smart Mobile Inc (Reel 049302/0997)
     • 2020-09-26: IP Holdings to Smart Mobile Inc (Reel 049305/0073)
     • 2020-11-12: Smart Mobile, Inc. to SMART MOBILE TECHNOLOGIES LLC (Reel 049444/0839)
   • These transfers, particularly those in September 2020 to "Smart Mobile Inc" followed by the transfer in November 2020 to "SMART MOBILE TECHNOLOGIES LLC", involve multiple entities within a short timeframe and are handled by the same correspondent firm (Stroock & Stroock & Lavan LLP), indicating potential internal restructuring for assertion purposes.

5. Pre-litigation transfer — present.

   • The patent was issued on November 17, 2015. The assignment to SMART MOBILE TECHNOLOGIES LLC occurred on November 12, 2020 (Reel 049444/0839). Litigation cases involving SMART MOBILE TECHNOLOGIES LLC started in 2021 (e.g., Texas Western District Court cases 6:21-cv-00701 and 6:21-cv-00603). This transfer occurred within six months of the earliest reported litigation in 2021.

6. Bankruptcy fire-sale — not present.

7. Privateering — unclear. While IP Holdings Inc. is affiliated with a patent enforcement firm, and the ultimate assignee is an active asserter, there is no direct evidence within the provided information to confirm a specific privateering arrangement with an operating company.

8. Defensive aggregator (anti-NPE) — not present. The chain terminates with SMART MOBILE TECHNOLOGIES LLC, which is an asserting entity.

Verdict

NPE — high confidence. The presence of multiple strong signals, including the initial transfer from inventors to IP Holdings Inc. (an entity affiliated with a patent enforcement firm), the current assignee (SMART MOBILE TECHNOLOGIES LLC) being a known asserter with a history of litigation, cascading transfers in late 2020, and the recurrence of the same correspondent firm across several assignments, all point to a high-confidence NPE pattern. The transfer to SMART MOBILE TECHNOLOGIES LLC also occurred within six months prior to the earliest reported litigation. This information can be verified via the USPTO Assignment Center by searching for patent number 9191083 (https://assignmentcenter.uspto.gov/).

To identify the most relevant prior art for US patent 9191083, I will examine the patent citations listed for it.

Patent 8,824,434 (Portable wireless device with dual RF communication and antennas)

• Full Citation: US8824434B2
• Publication/Filing Date: The filing date of US 8,824,434 is October 26, 2010. US9191083B1 claims priority benefit from this patent application, indicating that it is a continuation of 12/912,607, filed Oct. 26, 2010 (which issued as US Pat. No. 8,824,434). Therefore, its priority date is the same as US9191083, which is December 16, 1996.
• Brief Description: This patent describes a portable wireless communication device that includes multiple antennas connected to a communication component. The communication component has a processor, transmitter, and receiver, and is configured to transmit and receive data streams by simultaneously using the multiple antennas.
• Potential Anticipation (35 U.S.C. § 102): US8824434B2 appears highly relevant and potentially anticipates aspects of Claims 1, 12, and 23 of US9191083. Specifically, it discloses a wireless device with "a plurality of antennas" and a "communication component including a processor, a transmitter, and a receiver, the communication component configured to transmit a first data stream by simultaneously transmitting a first plurality of signal streams using the plurality of antennas, the first plurality of signal streams collectively representing the first data stream, the communication component configured to receive a second data stream by simultaneously receiving a second plurality of signal streams using the plurality of antennas and generating the second data stream from the second plurality of signal streams." This directly addresses the multi-antenna and multi-T/R unit aspects of the independent claims of US9191083. The abstract of US9191083 even mentions US 8,824,434 as a continuation of its lineage.

US patent 9191083, titled "Wireless device with multichannel data transfer," claims a wireless mobile device, a network switch box, and a cradle adapter, all characterized by features aimed at increasing data transfer rates and improving communication quality by utilizing multiple antennas, multiple transmit/receive (T/R) units, and parallel processing capabilities. The priority date for this patent is December 16, 1996. An analysis under 35 U.S.C. § 103 for obviousness requires examining what a person having ordinary skill in the art (PHOSITA) would have known and been motivated to combine prior to this date.

The patent itself acknowledges the state of the prior art, stating, "The typical cellular telephone/mobile device (CT/MD) today has a single antenna, which is directly connected to a single receiver" and that this single-channel approach leads to "signal 'fade' and communication disconnects." The patent aims to address "an unfulfilled need... for multiple T/R in a CT/MD, providing enhanced capabilities, and the multiple T/R capabilities will often be best met with multiple antennas."

Based on the knowledge available to a PHOSITA by December 16, 1996, the key features of the independent claims would likely have been obvious combinations of existing technologies, driven by a clear motivation to improve wireless communication performance and device functionality.

Combination of Prior Art for Obviousness

The independent claims (Claim 1 for a wireless mobile device, Claim 12 for a network switch box, and Claim 23 for a cradle adapter) share common core elements. We will analyze the obviousness of these elements in combination.

1. Multiple Antennas

• Prior Art: Prior to December 1996, the concept of using multiple antennas to improve wireless communication was well-established. Antenna diversity, including spatial and polarization diversity, had been known since at least the 1970s as a technique to mitigate multipath fading and enhance receiver performance, primarily in cellular base stations. While not yet common in mobile terminals due to size and cost, the underlying principles were understood. The roots of MIMO (Multiple-Input Multiple-Output) technology, which explicitly uses multiple antennas for higher data rates and lower error rates, trace back to antenna diversity research in the 1920s, with significant theoretical advancements occurring in the 1990s. For instance, a 1996 paper by Bell Labs described "layered space-time architecture for wireless communication in a fading environment when using multi-element antennas." Furthermore, dual-polarized and multi-band antennas for base stations were under development in the mid-90s to handle increasing cellular traffic and different frequency bands.
• Motivation to Combine: A PHOSITA seeking to improve signal range, bandwidth, and combat signal fade in a wireless device (as acknowledged by the patent's background) would have been motivated to employ multiple antennas. This was a known engineering solution to common wireless communication problems. The desire to support multiple frequencies or applications (e.g., cellular voice and data) would naturally lead to using antennas specifically designed or multiplexed for those purposes.

2. Multiple Transmit/Receive (T/R) Units

• Prior Art: The development of multi-band and multi-mode cellular phones in the mid-1990s demonstrates the existing knowledge of designing devices capable of operating across different frequency bands and transmission standards (e.g., AMPS, TDMA, GSM). Such functionality inherently requires the use of multiple T/R chains or highly adaptable T/R circuitry capable of switching between or handling different frequency ranges and modulation schemes.
• Motivation to Combine: To fully leverage the benefits of multiple antennas (e.g., for diversity or multi-band operation), a PHOSITA would find it obvious to couple each antenna (or group of antennas) with a dedicated or multiplexed T/R unit. This parallelization of T/R functionality would directly address the bottleneck of a single T/R unit and enable simultaneous communication on different frequencies or with different protocols, thereby increasing overall data transfer rates and communication flexibility, a clear goal articulated in the patent.

3. Processor Unit Configured to Process Multiple Data Streams (Single Processor with Parallelism or Multiple Processor Units)

• Prior Art: By 1996, parallel processing techniques and architectures were well-established in computing and specifically in digital signal processing (DSP). Specialized DSP processors, such as the Texas Instruments TMS320C40, were designed for parallel processing applications and were known to speed up execution by distributing tasks across multiple processors. The increasing demand for higher data rates and the introduction of digital radio systems in the mid-90s made digital processing of antenna signals, including spatial multiplexing, a viable option.
• Motivation to Combine: As wireless communication evolved to handle multiple simultaneous data streams (e.g., voice and video, as exemplified in the patent), a PHOSITA would have been motivated to increase processing power to avoid computational bottlenecks. The use of multiple processors or a single processor designed with built-in parallelism to handle these multiple streams efficiently was a standard approach in computer engineering to manage increased computational load and improve throughput. The patent itself notes that "The processor or CPU speed is seldom a limiting factor, so the improvement in speed by providing multiple data paths is fully realized by the present invention," implying that the processing capability was a known enabler for faster data.

4. Multiple Input/Output (I/O) Ports (for Wireless Mobile Device and Network Switch Box)

• Prior Art: The practice of integrating multiple I/O ports into electronic devices for versatile connectivity was common. By 1996, personal computers typically featured various ports like serial, parallel, PS/2, and audio jacks. The Universal Serial Bus (USB) 1.0 was launched in May 1996, aiming to standardize and consolidate device connectivity. Ethernet ports had been in use since 1980 for local area networks.
• Motivation to Combine: A PHOSITA designing a modern communication device (whether mobile or fixed) would be motivated to include multiple and diverse I/O ports (e.g., USB, Ethernet, optical, coaxial cable, telephone) to offer "universal connectivity." This allows the device to interface seamlessly with various other devices and network environments, overcoming the limitations inherent in purely wireless communication for certain applications (e.g., high-bandwidth data transfer or when wireless signal is poor).

5. Cradle Adapter (Claim 23)

• Prior Art: Cradle adapters and docking stations for portable electronic devices (such as laptops and PDAs) were well-known before 1996. Their primary function was to expand the device's connectivity options and often provide charging, essentially allowing a portable device to act more like a desktop unit when docked. These adapters could replicate various ports including serial, parallel, and later USB and Ethernet.
• Motivation to Combine: A PHOSITA would be motivated to extend the functionality of a cradle adapter to also enhance the wireless capabilities of a docked device or to enable a non-wireless device to access wireless networks. Equipping a cradle adapter with multiple antennas, multiple T/R units, and parallel processing capabilities (similar to the arguments above for mobile devices and network switch boxes) would be an obvious step to provide superior wireless performance and broader connectivity options for the attached device, especially given that a cradle adapter typically has fewer size and power constraints than a portable mobile device. The patent describes the cradle adapter's ability to "make any non-wireless device (NWD) unit 613 wireless enabled" and have "multiple antennas, multiple T/R units and multiple processors built-in to deliver full functionality," which is a straightforward application of existing knowledge in docking solutions combined with the advanced wireless communication techniques.

In summary, the claims of US patent 9191083 describe the integration of several well-known technological components and concepts (multiple antennas, multiple T/R units, parallel processing, multiple I/O ports) into wireless mobile devices, network switch boxes, and cradle adapters. The motivation for a PHOSITA to combine these elements by the priority date of 1996-12-16 would be clear: to overcome the recognized limitations of single-channel wireless communication, achieve higher data rates, improve signal quality and reliability, and provide versatile connectivity. The "advances in the art" in component miniaturization, as noted by the patent, made the practical implementation of such combinations feasible rather than inventing a new underlying principle. Therefore, the claimed subject matter would have been obvious under 35 U.S.C. § 103.