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公开(公告)号：US20090004977A1
公开(公告)日：2009-01-01
申请号：US11824190
申请日：2007-06-29
IPC分类号： H04B1/38
CPC分类号： H04B1/3877
摘要： In one embodiment, the present invention includes an accessory device for coupling to a portable system having an AM radio receiver. The accessory device includes a housing to house at least one accessory component and an AM antenna.
摘要翻译： 在一个实施例中，本发明包括用于耦合到具有AM无线电接收机的便携式系统的附件装置。 附件装置包括容纳至少一个辅助部件和AM天线的壳体。
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公开(公告)号：US6145104A
公开(公告)日：2000-11-07
申请号：US22396
申请日：1998-02-12
IPC分类号： G01R31/28 , G06F11/273
CPC分类号： G06F11/2733
摘要： An integrated circuit containing a data processing system with a number of external peripheral pins utilizes the peripheral pins for both testing the corresponding peripherals and for parallel testing of other complex functions in a MCU. The MCU has a plurality of test modes that can be selected, with different peripheral pins being connected to a test circuit depending on which test mode is selected. This allows testing of peripherals via their corresponding pins, as well as other complex functions without the necessity of having dedicated test pins.
摘要翻译： 包含具有多个外部外设引脚的数据处理系统的集成电路利用外围引脚来测试相应的外设以及用于MCU中其他复杂功能的并行测试。 MCU可以选择多种测试模式，根据选择哪种测试模式，不同的外设引脚连接到测试电路。 这允许通过其相应引脚以及其他复杂功能测试外设，而无需专用测试引脚。
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公开(公告)号：US08315587B2
公开(公告)日：2012-11-20
申请号：US12231184
申请日：2008-08-29
IPC分类号： H04H20/57
摘要： In one implementation, a receiver may have an analog front end with an amplifier to receive a radio frequency (RF) signal and a mixer to downconvert the signal to a baseband signal. Then, a demodulator may receive the baseband signal and obtain an audio signal therefrom. Still further, a controller may be coupled to receive a control signal corresponding to a variable impedance level, and control a local oscillator coupled to the mixer responsive to the control signal. The variable impedance may be controlled by a user to tune to the channel.
摘要翻译： 在一个实现中，接收机可以具有模拟前端，其具有放大器以接收射频（RF）信号和混频器以将信号下变频为基带信号。 然后，解调器可以接收基带信号并从其获得音频信号。 此外，控制器可以被耦合以接收对应于可变阻抗电平的控制信号，并且响应于控制信号来控制耦合到混频器的本地振荡器。 可变阻抗可以由用户控制以调谐到通道。
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公开(公告)号：US08032090B2
公开(公告)日：2011-10-04
申请号：US11824190
申请日：2007-06-29
IPC分类号： H04B1/38
CPC分类号： H04B1/3877
摘要： In one embodiment, the present invention includes an accessory device for coupling to a portable system having an AM radio receiver. The accessory device includes a housing to house at least one accessory component and an AM antenna.
摘要翻译： 在一个实施例中，本发明包括用于耦合到具有AM无线电接收机的便携式系统的附件装置。 附件装置包括容纳至少一个辅助部件和AM天线的壳体。
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5.发明授权Microcontroller having a non-volatile memory and a method for selecting an operational mode 失效具有非易失性存储器的微控制器和用于选择操作模式的方法
公开(公告)号：US06009012A
公开(公告)日：1999-12-28
申请号：US89719
申请日：1998-06-03
CPC分类号： G11C16/102 , G11C16/20 , G11C29/52
摘要： A method for automatically detecting a programmed status of a non-volatile memory and selecting one of multiple operational modes based on that status. In one embodiment a non-volatile memory (102) has a normal and an access restricted operational mode. The memory is placed in the access restricted operational mode once it is programmed in order to prevent unauthorized access to the programmed data. A detection logic (226) determines whether the non-volatile memory is in a non-programmed state. Based on this detection it is determined whether the non-volatile memory is to be placed in a normal or an access restricted operational mode. The invention relates also to determining an operational mode of the microcontroller which can advantageously be incorporated into an assembled electronic device.
摘要翻译： 一种用于自动检测非易失性存储器的编程状态并基于该状态选择多种操作模式之一的方法。 在一个实施例中，非易失性存储器（102）具有正常和访问受限操作模式。 一旦编程存储器就被置于访问受限操作模式中，以防止未经授权的访问编程数据。 检测逻辑（226）确定非易失性存储器是否处于非编程状态。 基于该检测，确定非易失性存储器是否被放置在正常或访问受限的操作模式中。 本发明还涉及确定微控制器的操作模式，其可以有利地结合到组装的电子设备中。
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