PROPRIETARY AND CONFIDENTIAL
Built-in antenna IEEE802.11b/g/n (1x1) Wireless LAN Module BP3595
HARDWARE SPECIFICATION
Version 1.0.0
Built-in antenna IEEE802.11b/g/n (1x1) BP3591
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Revision history
Ver. Contents Date
1.0.0 First edition 15/8/20
Built-in antenna IEEE802.11b/g/n (1x1) BP3591
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1 ABSTRACT
This is specification for the wireless LAN module built-in wireless LAN LSI BU1805GU and
antenna based on IEEE802.11b/g/n (1×1) made by ROHM.
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2 CONTENTS
1 ABSTRACT ................................................................ 3
2 CONTENTS ................................................................ 4
3 ABSOLUTE MAXIMUM RATINGS ............................................ 5
4 RECOMMENDED OPERATING CONDITIONS ................................... 6
5 MAIN CHARACTERISTICS .................................................. 7
6 BLOCK DIAGRAM .......................................................... 8
7 ELECTRICAL CHARACTERISTICS ............................................ 9
8 TERMINAL FUNCTIONS .................................................... 10
9 DIMENSIONS ............................................................. 13
10 PRECAUTIONS FOR MOUNTING ............................................ 14
11 ABOUT THE FIXATION OF THE MODULE .................................... 15
12 PRODUCT LABEL SPEC .................................................... 16
13 REFERENCE CIRCUIT ...................................................... 17
14 PRECAUTIONS AS RESET OPERATION ....................................... 22
15 OPERATING .............................................................. 2 3
16 PRECAUTIONS AS A WIRELESS EQUIPMENT (1) .............................. 24
17 PRECAUTIONS AS A WIRELESS EQUIPMENT (2) .............................. 25
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3 ABSOLUTE MAXIMUM RATINGS
No. PARAMETER SYMBOL LIMITS UNIT REMARKS
1 Power supply voltage VCC -0.3 ～ +3.6 V DC
2 Operating temperature range Topr -40 ～ 85 ℃ -
3 Storage temperature range Tstg -40 ～ 85 ℃ -
Note) Absolute maximum ratings are the values that must not be exceeded at any time under any
application or any test conditions. Please make design keeping enough margins accordingly.
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4 RECOMMENDED OPERATING CONDITIONS
No. PARAMETER SYMBOL SPEC UNIT REMARKS
MIN. TYP. MAX.
1 Power supply voltage VCC 3.1 3.3 3.5 V -
2 Operating temperature range Ta -40 25 85 ℃ -
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5 MAIN CHARACTERISTICS
No. PARAMETER CHARACTERISTICS
1 Frequency width 2,400MHz ～ 2,483.5 MHz（ch1～ch13）
2 Frequency tolerance WITHIN ±25ppm
3 RF output power (*1)
IEEE802.11b： 15dBm±2dB
IEEE802.11g： 13dBm±2dB
IEEE802.11n： 12dBm±2dB
4 Supported data rates
IEEE802.11b： 1 ～ 11Mbps
IEEE802.11g： 6 ～ 54Mbps
IEEE802.11n： 6.5 ～ 72.2Mbps
5 Receiving sensitivity (*1)
IEEE802.11b： -94dBm @1Mbps,-89dBm @11Mbps
IEEE802.11g： -92dBm @6Mbps, -73dBm @54Mbps
IEEE802.11n： -90dBm @6.5Mbps, -68dBm @72.2Mbps
6 Security function 64bit/128bit WEP, TKIP, AES (*2)
7 Host Interface
USB2.0 (High-Speed mode)
SDIO Ver.2.00 (High-Speed mode)
UART (～921600bps)
8 Power supply voltage 3.3V on ly
(*1) RF output power and receiving sensitivity are performance value that is at the electricity
supplying point for antenna in the below figure.
(*2) 64bit/128bit WEP, TKIP, and AES are everything processed with hardware.
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6 BLOCK DIAGRAM
Fig 1. Block diagram
・ A Flash memory (option) is necessary for use the flash boot function.
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7 ELECTRICAL CHARACTERISTICS
CONDITIONS：Ta=25℃, VCC=3.3V, GND=0.0V
No. PARAMETER CONDITION SPEC UNIT REMARKS
MIN. TYP. MAX.
1 Consumption current
Sending 240 300 360 mA Continuous
280 340 400 mA Continuou s (With USB)
Receiving 160 200 240 mA -
200 240 280 mA With USB
Sleep mode - 1 - mA -
2 Center frequency - 2412 - 2472 MHz -
3 Frequency deviation - -25 - 25 ppm -
4 RF output power
11b：11Mbps 13 15 17 dBm (*1)
11g：54Mbps 11 13 15 dBm (*1)
11n：MCS7 10 12 14 dBm (*1)
5 Unnecessary
out-of-band radiation - - - 2.5 uW/MHz -
6 Transmit spectrum
mask
DSSS
11Mbps
- - -30 dBr 1st Side-lobe
- - -50 dBr 2nd Side-lobe
OFDM
54Mbps
- - -20 dBr ±11MHz
- - -28 dBr ±20MHz
- - -40 dBr ±30MHz
7 Receiving sensitivity
11b：11Mbps - -89 -76 dBm PER<8% (*1)
11g：54Mbps -73 -65 dBm PER<10% (*1)
11n：MCS7 - -68 -64 dBm PER<10% (*1)
8
Unnecessary
radiation
for receiving
Fr<1GHz - - 4 nW -
≧
Fr 1GHz - - 20 nW -
(*1) At electricity supplying point for antenna.
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8 TERMINAL FUNCTIONS
Table 1. Module Terminal Functions (1/2)
No. TERMINAL
NAME I/O FUNCTIONS REMARKS
1 BOOT_SEL0 I(*) Boot mode select (**)
2 GPIO8/32k I/O General purpose Input/Output 8 GPIO 8 or 32.768kHz clock input
3 GPIO6 I/O General purpose Input/Output 6 -
4 GPIO0 I/O General purpose Input/Output 0 -
5 V28_STBY I V28 LDO Standby port Active Hi (VCC Voltage)
6 GPIO2 I/O General purpose Input/Output 2 -
7 GPIO1 I/O General purpose Input/Output 1 -
8 V12_STBY I V12 LDO Standby port Active Hi (VCC Voltage)
9 UART_TXD O UART sending data -
10 UART_RXD I UART receiving data -
11 FLASH_TXD I/O Flash memory sending data Terminal for flash boot
12 FLASH_CLK O Flash memory clock Terminal for flash boot
13 FLASH_CSB O Flash memory chip select Terminal for flash boot
14 FLASH_RXD I Flash memory receiving data Terminal for flash boot
15 PRST I Power on reset 0:Reset, 1:Normal
1 15
30 16
Back side BP3595 Connector (Recept acle) Type
：DF40C-30DS-0.4V(51) (Hirose electric Co., Ltd.)
User-side Connector (Plug) Type
：DF40C-30DP-0.4V(51) (Hirose electric Co., Ltd.)
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Table 1. Module Terminal Functions (2/2)
No. TERMINAL
NAME I/O FUNCTIONS REMARKS
16 GND - Ground -
17 USB_DM AI/O USB data minus -
18 USB_DP AI/O USB data plus -
19 GND - Ground -
20 SDDATA2 I/O SDIO data 2 -
21 SDDATA3 I/O SDIO data 3 -
22 SDCMD I/O SDIO command -
23 VCC - Power supply 3.3V Module power supply input
24 VCC - Power supply 3.3V Module power supply input
25 SDCLK I SDIO clock -
26 SDDATA0 I/O SDIO data 0 -
27 SDDATA1 I/O SDIO data 1 -
28 HOST_SEL I(*) Host I/F select 0:USB, 1:SDIO
29 FLASH_SEL I(*) Flash memory area select 0:region1, 1:reg io n2
30 BOOT_SEL1 I(*) Boot mode select (**)
(*) FLASH_SEL / HOST_SEL / BOOT_SEL0 / BOOT_SEL1 terminals hold the value after
reset (Power On Reset). After reset, these terminals are used for another purpose in the module.
There terminals have pull down resistance inside. Therefore, please set these terminals OPEN in
case of setting for “0” and Pull up 3.3V (power supply voltage) with 3kΩ～5kΩ resistor
(recommendation is 4.7kΩ resistor) in case of setting for “1”.
When the host MCU controls these terminal, please do not connect directly with output terminal
of host MCU and insert 3kΩ～5kΩ resistor (recommendation is 4.7kΩ resistor) between them.
When FLASH BOOT function is not used, FLASH_TXD terminal (pin 11) should be connected
pull down resistor of 47kΩ.
When FLASH BOOT function is used, FLASH_TXD terminal (pin 11) and FLASH_RXD (pin 14)
terminal would be connected pull down resistor, if you need.
PRST is POWER ON RESET terminal. It is connected 4.7kΩ resistor + 2.2uF capacitor at 3.3V
inside the module.
In case that need to watch the power supply voltage, please connect such as OPEN DRAIN
RESET IC for this terminal.
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V12_STBY terminal and V28_STBY terminal control LDO which are mounted BP3595.
Hi(VCC voltage): active, Lo(GND):stand-by
Please open the other unused terminal.
(**) BOOT_SEL terminal select boot location of firmware.
BOOT_SEL[1:0]
00:USB, 01:SDIO, 10:FLASH, 11:UART
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9 DIMENSIONS
Fig.2 Dimensions（Unit: mm）
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10 PRECAUTIONS FOR MOUNTING
Fig.3 Precautions for Mounting (Unit：mm)
(1) Please don’t patterning the area under pattern prohibition area so that there is an adverse
effect in a wireless characte ristic.
(2) Please do not set your substrates around the chip antenna within 1cm.
(3) Please do not use metals for a chassis setting this module.
(4) Please do not mount parts under this module except a specified connector.
Pattern
Antenna
Pattern Prohibition Area Screw Hole (M2)
Shield Case
Connector
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11 ABOUT THE FIXATION OF THE MODULE
Please use the M2 screw (made of metal) for fixing BP3591.
Please use a spacer (made of metal) which height is 1.5mm, between your substrate and this
module.
M2 screw hole is GND of BP3591. Please use a metal spacer for ground connection between
BP3591 GND and your substrate GND. ( Refer to the figure below)
A torque to tighten M2 screw should be more than 1kgf･cm, and do not tighten the screw too
much.
Fig.4 Fixed Module Figure (Side view)
BP3595
User side PCB
Nut
Spacer
M2 screwPattern antenna
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12 PRODUCT LABEL SPEC
The label shown in the following figure is put on the shield case.
Fig.5 Product Label Spec
*Micro QR code is included in the MAC address information.
(Note)The design of product label might change without previous notice.
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13 REFERENCE CIRCUIT
13-1 USB HOST INTERFACE
Fig.6 USB Interface Reference Circuit
*About USB_DP and USB_DM Lines
・ Please shorten the wiring length as much as possible.
・ Please take the differential impedance matching to 90Ω±10%.
・ Please set up to 45Ω±10% for impedance matching of single end.
・ Please wire USB_DP and USB_DM lines same lengths as possible.
(Difference of the wire length is less than 0.5mm.)
・ Please do not bend USB lines many times and make the bend angle small.
・ Please do not make threw hole in wiring if possible .
・ Please do not cross the USB lines and another signal lines.
・ Please do not cross the USB lines and a power supply line.
*Please reduce the ripple of power supply (VCC=3.3V) as much as possible. (less than 10mVpp)
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13-2 SDIO HOST INTERFACE
Fig.7 SDIO Interface Reference Circuit
*Please reduce the ripple of power supply (VCC=3.3V) as much as possible. (less than 10mVpp)
*About the line of SDCLK/SDDATA/SDCMD
・Over shoot and under shoot of signal lines cause a lot of damage to wireless performance.
Please design so that its noise level becomes lower as possible within the SDIO standard
timing.
For example it can be insert dumping resistor near the host signal source.
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13-3 UART INTERFACE
Fig.8 UART Interface Reference Circuit
*Please reduce the ripple of power supply (VCC=3.3V) as much as possible. (less than 10mVpp)
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13-4 FLASH BOOT (UART INTERFACE MODE)
(*) Flash memory of above figure is S25FL032P.
Fig.9 Flash Boot (UART INTERFACE )Reference Circuit
LE25U40CQH-AH (Sanyo Semiconductor)
or
W25X40CLZPIG (Winbond)
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13-5 Reset IC
Fig.10 Reset IC Connection Reference Circuit
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14 PRECAUTIONS AS RESET OPERATION
･Please do not reset (PRST, COMMAND RESET) when BP3595 is accessing to its internal
EEPROM.
･BP3595 under writing to the EEPROM is reset (*), which may cause unexpected failure such
as incorrect checksum.
･BP3595 under reading from the EEPROM is reset (**), which may cause unstable condition,
and you should supply VCC power again.
(*) About write operations of the EEPROM
BP3595 writes to the EEPROM in the followin g cases.
①Recording various settings used in TCP/IP firmware
②Recording credential data which is obtained when BP3595 with stand-alone mode acts
WPS
(**) About read operations of the EEPPROM
BP3595 reads from the EEPROM in the following cases.
①After reset (≦100ms)
②After firmware starting (≦100ms)
③When WID_SERIAL_NUMBER command is issued.
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15 OPERATING PRECAUTIONS
1）There is some case that the MAC address does not become sequential number in a same package.
2）About soldering of mounting parts on this product, presence of soldering fillet does not be asked.
3）About the products label, defections does not be asked except coming off, lapping, or not to
recognize the characters extrem ely.
4）A connector is possible to break by excessive swing or shock because of the structure of the
product. Efficient evaluation is necessary to use the module when there is a fear of swinging or
shocking.
5）The connector of BP3595 does not have a specification assumed to do many times of extraction
and insertion. Please be sure that the number of extraction and insertion is within 10 times.
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16 PRECAUTIONS AS A WIRELESS EQUIPMENT (1)
BP3595 acquired “Construction design attestation” (Article 38-24, Clause1 of Radio Law in
Japan) of “Particular wireless equipment: Low power data communications system in the
2.4GHz band, which is a Wireless equipment in Article 2-1(19)”
Therefore, only in Japan, it is possible to use as wireless equipment without applying for
wireless office.
・Construction design attestation No. : 003-120319
Be sure to keep following notes to use the module safely as wireless equipment.
1）The label on the module is a certification which shows it has “Certification of technical
standard conform ity.”
Please do not remove the label or do not put another label on the label.
2）Please do not resolve or remodel strictly because there are some cases of receiving penalty
based on Radio Law in Japan.
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17 PRECAUTIONS AS A WIRELESS EQUIPMENT (2)
BP3591 acquired Federal Communications Commission (FCC Part15 Subpart C).
As long as using chip antenna, your set include BP3591 is able to use in U.S. without
application of FCC.
・ FCC ID: ANSBP3591
Please following the below precautions for using BP3591 as wireless equipment in U.S.
1) The label put on the product is a certification label shown to be acquiring "FCC
certification".
Please do not remove the label or do not put another label on the label.
2) If FCC ID displayed on BP3591 cannot be seen from the outside, the following
displays (*) are needed for your product containing BP3591.
“Contains Transmitter Module FCC ID: ANSBP3591”
or
“Contains FCC ID: ANSBP3591”
(*) The character size can be read easily is required. However it is not required more
than 8 points.
And also line break is not permit.
3) It is necessary to display the following texts on your product. (*)
This device complies with part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
(*) If the text cannot be displayed on your product, you should describe in a manual or a
package. It is foundations that the text is indicated on a product.
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4) It is necessary to indicate all the texts applicable to the manual of your product.
① It is necessary text for all products.
FCC CAUTION
Change or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
② It is necessary text for all products. 2
This transmitter must not be co-located or operated in conjunction with any other
antenna or transmitter.
③ A product needs a SAR examination is necessary to indicate the following texts in a
manual.
A SAR examination is not required at mobile products (*) but is required at portable
products (**).
(*) Mobile product ･･･ The product is used separating from a human body over 20 cm.
(**) Portable product ･･･ The prod uct is used by human body within 20cm.
③-1 It is necessary texts for a mobile product.
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment and meets the FCC radio frequency (RF) Exposure Guidelines in
Supplement C to OET65. This equipment should be installed and operated keeping the
radiator at least 20cm or more away from person’s body (excluding extremities: hands,
wrists, feet and ankles).
③-2 It is necessary text for a portable product.
The available scientific evidence does not show that any health problems are
associated with using low power wireless devices. There is no proof, however, that
these low power wireless devices are absolutely safe. Low Power Wireless devices emit
low levels of radio frequency energy (RF) in the microwave range while being used.
Whereas high levels of RF can produce health effects (by heating tissue), exposure of
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low-level RF that does not produce heating effects causes no known adverse health
effects. Many studies of low-level RF exposures have not found any biological effects.
Some studies have suggested that some biological effects might occur, but such
findings have not been confirmed by additional research. [Product name（model
name）] has been tested and found to comply with FCC radiation exposure limits set
forth for an uncontrolled environment and meets the FCC radio frequency (RF)
Exposure Guidelines in Supplement C to OET65. The maximum SAR levels tested for
[Product name（model nam e）] has been shown to be [SAR measurement value] W/kg
at Body.
FCC does not request to mention of a SAR measurement value.
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●Precautions for Safety
1) The products are designed and produced for application in ordinary electronic equipment (AV
equipment, OA equipment, telecommunication equipment, home appliances, amusement
equipment, etc.).
If the products are to be used in devices requiring extremely high reliability (medical
equipment, transport equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers,
car equipment including car accessories, safety devices, etc.) and whose malfunction or
operational error may endanger human life and sufficient fail-safe measures, please consult
with the ROHM sales staff in advance. If product malfunctions may result in serious damage,
including that to human life, sufficient fail-safe measures must be taken, including the
following:
[a] Installation of protection circuits or other protective devices to improve system safety
[b] Installation of redundant circuits in the case of single-circuit failure
2) The products are designed for use in a standard environment and not in any special
environments.
Application of the products in a special environment can deteriorate product performance.
Accordingly, verification and confirmation of product performance, prior to use, is
recommended if used under the following conditions:
[a] Use in various types of liquid, inclu ding water, oils, chemicals, and or ga nic solvents
[b] Use outdoors where the products are exposed to direct sunlight, or in dusty pla ce s
[c] Use in places where the products are exposed to sea winds or corrosive gases , includ in g
Cl2, H2S, NH3, SO2, and NO2
[d] Use in places where the products are exposed to static electricity or electromagnetic
waves
[e] Use in environment subject to strong vibration and impact.
[f] Use in proximity to heat-producing components, plastic cords, or other flammable items
[g] Use involving sealing or coating the products with resin or other coating materials
[h] Use of the products in places subject to dew condensation
3) The products might receive the radio wave interference from electronic devices such as
Wireless LAN devices, Bluetooth devices, digital cordless telephone, microwave oven and so
on that radiate electromagnetic wave.
4) The products are not radiation resistant.
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5) Verification and confirmation of performance characteristics of products, after on-board
mounting, is advised.
6) Confirm that operation temperature is within the specified range described in product
specification.
7) Failure induced under deviant condition from what defined in the product specification can not
be guaranteed.
8) This product is a specification to radiate the radio wave. It is necessary to acquire the attestation
of decided Radio Law of each region used to use the equipment that radiates the radio wave.
Please inquire about the attestation of Radio Law that this product acquires.
9) When product safety related problems arises, please immediately inform to ROHM, and
consider technical counter measure.
●Precautions for Reference Circuits
1) If change is made to the constant of an external circuit, allow a sufficient margin due to
variations of the characteristics of the products and external components, including transient
characteristics, as well as static characteristics.
2) The reference circuit examples, their constants, and other types of information contained
herein are applicable only when the products are used in accordance with standard methods.
Therefore, if mass production is intended, sufficient consideration to external conditions must
be made.
● Precaution for Electrostatic
This product is Electrostatic sensitive product, which may be damaged due to Electrostatic
discharge. Please take proper caution during manufacturing and storing so that voltage
exceeding Product maximum rating won't be applied to products. Please take special care under
dry condition (Grounding of human body / equipment / solder iron, isolation from charged objects,
setting of Ionizer, friction prevention and temperature / humidity control etc.)
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● Precaution for Storage / Transportation
1) Product performance and connector mating may deteriorate if the products are stored in the
followi ng places:
[a] Where the products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3,
SO2 and NO2
[b] Where the temperature or humidity exceeds those recommended by the Company
Temperature: 5℃～40℃, Humidity 40%～60%
[c] Storage in direct sunshine or condensation.
[d] Storage in high Electrostatic.
2) Even under ROHM recommended storage condition, connector mating of products over 1
year old may be degraded.
3) Store / transport cartons in the correct direction, which is indicated on a carton as a symbol,
otherwise bent leads may occur due to excessive stress applied when dropping of a carton..
● Precaution for Product Label
QR code printed on ROHM product label is only for internal use, and please do not use at
customer site.
It might contain a internal part number that is inconsistent with an product part number.
● Precaution for Disposition
When disposing products please dispose them properly with a industry waste company.
● Prohibitions Regarding Industrial Property
1) These Specifications contain information related to the ROHM industrial property. Any use
of them other than pertaining to the usage of appropriate products is not permitted.
Duplication of these Specifications and its disclosure to a third party without the Company’s
permission is prohib ite d.
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2) Information and data on products, including application examples, contained in these
specifications are simply for reference; the Company does not guarantee any industrial
property rights, intellectual property rights, or any other rights of a third party regarding this
information or data. Accordingly, the Company does not bear any responsibility for:
[a] infringement of the intellectual property rights of a third party
[b] any problem s incurred by the use of the products list ed herei n.
3) The Company prohibits the purchaser of its products to exercise or use the intellectual property
rights, industrial property rights, or any other rights that either belong to or are controlled by the
Company, other than the right to use, sell, or dispose of the products.
