Apparatus and method for automated band selection via synthesizer bit insertion
First Claim
1. A method for providing band selection in a communication apparatus with band to band operating capability, the communication apparatus including a receiver section, a transmitter section, a frequency synthesizer and a controller, the method comprising:
- receiving a frequency command data signal, the frequency command data signal used for deriving a bit stream, the bit stream including a frequency data word defining a synthesizer operating frequency and at least one functional bit for specifying a mode of operation;
extracting the functional bit from the bit stream to generate an operational signal;
providing the operational signal to the receiver section to modify operation thereof; and
, utilizing the frequency data word to further modify operation of the communication apparatus.
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Accused Products
Abstract
A method and apparatus for providing time-critical band selection in a communication device with dual band or multi-band switching, or, alternatively, for providing dual mode or multi-mode time critical operating ability. The mobile station typically has a transmitter section and a receiver section each capable of dual modes of operation, a frequency synthesizer and a controller. The band to band operating method utilizes a frequency command data signal where data derived from the signal is used in a determinable bit stream of data including a frequency data word. The frequency data word is used for defining an operational state of the synthesizer frequency thereby implementing the transceiver'"'"'s operating channel. At least one bit (or functional bits) from within the bit stream or received signal is used for defining, at least momentarily, the transceiver'"'"'s “new” operating band (or state). The functional bits can also be used to effectuate other time critical operations of the mobile station, including band to band switching operations (such as MAHO) over two distinct frequency bands; or, one or more can be used to switch or enable control circuits or functions or operations which are time limited or time constrained or which implicate time critical operations of the communication device or apparatus.
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Citations
42 Claims
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1. A method for providing band selection in a communication apparatus with band to band operating capability, the communication apparatus including a receiver section, a transmitter section, a frequency synthesizer and a controller, the method comprising:
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receiving a frequency command data signal, the frequency command data signal used for deriving a bit stream, the bit stream including a frequency data word defining a synthesizer operating frequency and at least one functional bit for specifying a mode of operation;
extracting the functional bit from the bit stream to generate an operational signal;
providing the operational signal to the receiver section to modify operation thereof; and
,utilizing the frequency data word to further modify operation of the communication apparatus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
providing a latch signal from the controller for latching the functional bit;
further utilizing the frequency data word by the controller for generating at least one data signal; and
providing the data signal to the frequency synthesizer to effect operation thereof.
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3. The method of claim 1, wherein the step of extracting includes holding the functional bit for at least the time the controller utilizes to implement a functionally similar condition within the receiver section.
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4. The method of claim 1, wherein the step of extracting includes holding the functional bit for at least the time the controller utilizes to evaluate the frequency command data signal and implement the operational state defined by the functional bit.
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5. The method of claim 1, wherein the step of extracting includes holding the functional bit for at least the time the controller utilizes to evaluate the frequency command data signal and implement the operational state defined by the frequency command data signal.
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6. The method of claim 1, wherein the step of utilizing the frequency data word by the controller includes coupling the controller to a digital signal processor programmed with a set of computer instructions for evaluating the frequency command data signal.
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7. The method of claim 1, wherein the step of utilizing the frequency data word includes coupling the controller to a logic circuit for controlling operation of the communication apparatus.
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8. The method of claim 7, wherein the logic circuit includes circuitry of an application specific integrated circuit (ASIC).
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9. A communication apparatus including:
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a receiver section for receiving a command signal wherein the command signal includes a data stream of bits for commanding the operation of a portion of the communication apparatus;
a transmitter section for transmitting an output signal in a predetermined transmit format;
a controller for controlling the operation within the communication apparatus and which is responsive to certain data within the data stream;
a latching circuit responsive to the controller for capturing within a latch device a portion of the data of the data stream; and
,a selecting circuit responsive to the data portion captured by the latching circuit, and wherein the selecting circuit is responsive to the data portion captured prior to a similar operation by the controller. - View Dependent Claims (10, 11, 12, 13)
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14. A circuit for implementing first band to second band selection in a communication apparatus, the communication apparatus including:
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an input/output circuit including a latch circuit for receiving a portion of a frequency command data signal, wherein a bit or bits derived from the frequency command data signal are used for specifying an operational band;
a receiver connected to the input/output and the latch circuits;
a transmitter connected to the input/output and latch circuits; and
,a frequency synthesizer connected to a controller, the receiver, and the transmitter, wherein the frequency synthesizer is responsive to data derived from the portion of the frequency command data signal, and wherein the latch circuit utilizes the bit or bits and a clock signal to provide a band select signal for effecting selection of a second band by the communication apparatus. - View Dependent Claims (15, 16, 17, 18)
a first flip-flop with a clocking input for receiving the clock signal, a reset input connected to receive a strobe signal, and a data input connected to a predetermined logic state;
a second flip-flop with a clocking input connected to an output of the first flip-flop, a reset input connected to receive a reset signal, and a data input connected to receive data derived from a frequency command data signal; and
a third flip-flop with a clocking input connected to the strobe signal, a reset input connected to receive the reset signal, and a data input connected to an output of the second flip-flop; and
,an output of the third flip-flop for providing the band select signal.
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18. The latch circuit of claim 17, wherein the output of the first flip-flop provides a latch signal for latching a frequency data word derived from the frequency command data signal.
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19. A system for facilitating band switching in a communication apparatus, the apparatus comprising:
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an input/output (i/o) section including an input node;
a receiver connected to the i/o section;
a transmitter connected to the i/o section; and
a frequency synthesizer connected to the transmitter and receiver;
a circuit connected to an output of the receiver and connected to band-specific circuitry, wherein the circuit is responsive to at least one data bit of a frequency command data signal received at the input node and a clock signal and a control signal, the circuit thereby outputting a band select signal to select and enable the band-specific circuitry within the communication apparatus. - View Dependent Claims (20, 21, 22, 23)
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24. A communication apparatus comprising a selector, a second section, a third section and controller, and wherein the communication apparatus is capable of at least dual mode operating ability, and wherein state specific circuitry within the second section and state specific circuitry within the third section are both responsive to a pre-determination of a command signal;
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the controller, in a first evaluation of the command signal provided by the selector, uses a specific subset of operable code to predetermine only a portion of the second operating state of the communication apparatus, and in a second evaluation of the command signal, uses additional operable code to determine the second operating state of the communication apparatus;
a first signal path from the controller to the state specific operating circuitry within the second section for generating a control signal to activate the state specific circuitry therein based on the predetermined portion of the second operating state; and
a second signal path to the state specific operating circuitry within the third section wherein a deselecting signal to deactivate the state specific circuitry therein based on the predetermined portion of the second operating state;
a plurality of signal paths connected from the controller and to a plurality of control circuits, wherein each control circuit is used to implement the second state as subsequently determined. - View Dependent Claims (25, 26, 27, 28)
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29. A method for providing operational control in a communication apparatus with at lea two states of operation, the communication apparatus including a first operational section, a second operational section, and a controller, the method comprising:
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operating the communications apparatus in a first operating state;
receiving an operational command signal, the operational command signal including an operational data word used in specifying an operating state of the communication apparatus and at least one functional bit used in defining at least a portion of the operating state;
extracting the functional bit from the operational command signal to thereby generate at least one operational mode signal;
providing the operational mode signal or signals to the first operational section to modify operation thereof; and
, thereafter,determining from the operational data word data which specifies a second operating state; and
,controlling the first operational section and the second operational section from the controller and in conformity with the data which specified the second operating state. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification